Can a partial-thickness rotator cuff tear heal on its own?

A partial tear or an irritated tendon can settle down completely and stop hurting, and many partial tears never cause trouble again. The tear may still show on a later MRI, but a shoulder that is pain-free and strong does not need the tear to disappear. A full-thickness tear is different: it does not reattach to the bone on its own, although it can also become pain-free without surgery.

Will my partial tear turn into a full-thickness tear?

Most do not, at least over the first few years. In a study of 122 people with painful tears treated without surgery and followed with repeat MRIs, 26% of partial-thickness tears got larger over an average of about two years, compared with 82% of full-thickness tears (Kim et al., Knee Surg Sports Traumatol Arthrosc, 2017). A review of 257 partial tears found that progression to a full-thickness tear happened at a relatively low rate over about three years, and at similar rates whether or not the tear hurt (Tsuchiya et al., J Shoulder Elbow Surg, 2021). High-grade tears are more likely to progress: about 3 in 10 of 52 high-grade partial tears became full-thickness over an average of almost three years (Oh et al., Clin Orthop Surg, 2020). Over the very long term, in a Swedish study that rechecked patients about 22 years after a procedure that made more room for the tendon without repairing it, most partial tears were unchanged, arthritis related to the tear was rare, and shoulder scores were generally good (Ranebo et al., J Shoulder Elbow Surg, 2017).

My MRI says "high-grade." Do I need surgery?

Not automatically. A high-grade partial tear is more likely to progress than a low-grade one, and it is the kind most often repaired when surgery is needed, but many people with a high-grade partial tear still do well with therapy. Dr. Raynor bases the recommendation on how your shoulder is behaving after a real trial of treatment, your strength, and what you need the shoulder to do, not on the grade alone.

Are steroid injections safe with a partial tear?

Used sparingly, yes. An injection can calm an irritated tendon and bursa so therapy can work. Dr. Raynor considers one or two reasonable; more than two can weaken the tendon. In a systematic review, two or more steroid injections in the year before a rotator cuff repair were linked to about two to three times the chance of needing revision surgery, so if surgery becomes likely, it is scheduled with some distance from the last injection (Cimino et al., Arthroscopy, 2020).

Why does my shoulder hurt so much if the tear is only partial?

Because much of the pain often comes from irritation around the tear rather than the tear itself. The bursa and the tendon can become inflamed, and once they are, everyday use keeps re-irritating them. A small partial tear with an angry bursa can hurt more than a larger tear that has been quiet for years. Calming that irritation is the goal of therapy and, when needed, an injection.

Often, yes, at some point. A partial tear cannot be seen on an X-ray, and the exam cannot measure how deep a tear goes. The timing depends on the plan: if the first step is therapy or an injection regardless of what the scan shows, it can wait. Dr. Raynor orders an MRI when the shoulder has not responded, when an injury caused weakness, or when surgery is being considered.

Can I keep exercising or playing with a partial tear?

Often, yes, with adjustments. Activity below shoulder level is usually fine, and physical therapy will guide what to add back. Soreness afterward is information rather than damage. Weakness after an injury is different: stop and have the shoulder examined.

How long is recovery if I need surgery?

If the tear is repaired: a sling for 6 weeks, physical therapy starting 1 to 2 weeks after surgery, strengthening from about 3 months, a healed tendon at about 4 months, most people doing what they want by about 6 months, and about a year before you stop thinking about the shoulder. Recovery is slow at first because the tendon has to heal and then get strong. If the tear did not need to be repaired, the recovery is lighter: usually a sling for comfort for a week or two, full motion right away, and no strengthening until 3 months, because a biceps tenodesis is usually done at the same time. The recovery roadmap covers every stage.

Partial Rotator Cuff Tears (Partial-Thickness Tears)

What is a partial-thickness rotator cuff tear? It is a tear that goes only part of the way through one of the rotator cuff tendons. The tendon is frayed or split, but it is still attached to the bone. That matters, because a partial tear or an irritated tendon can settle down, while a full-thickness tear does not reattach to the bone on its own. Most people with a partial tear start with physical therapy and get better without surgery. Surgery is for a shoulder that stays painful or weak after a real trial of treatment, or a tear that is getting worse.

Dr. Brett Raynor is a fellowship-trained orthopaedic sports medicine surgeon in Dallas who regularly sees patients who arrive with an MRI report that says "partial-thickness tear" and a lot of questions about what it means. This page explains the different kinds of partial tears, what the wording on the report means, how often partial tears get worse, and how Dr. Raynor decides between therapy, an injection and surgery. For rotator cuff tears in general, including full-thickness tears, see Rotator Cuff Tears.

Key points

A partial-thickness tear goes part of the way through the tendon. The tendon is still attached to the bone.
Partial tears are common with age and often cause no pain at all. In an MRI study of people with no shoulder pain, about 1 in 4 of those over 40 had one (Sher et al., J Bone Joint Surg Am, 1995).
A partial tear or an irritated tendon can settle down. Most are treated first with physical therapy, activity changes, anti-inflammatory medicine and, if needed, one or two steroid injections.
Partial tears grow less often than full-thickness tears, but some do progress, so a shoulder that changes deserves a recheck.
When surgery is needed, it is arthroscopic and outpatient, and what Dr. Raynor does depends on what he sees through the camera. Most often that means completing the tear and repairing it to the bone; when the tendon does not need a repair, the frayed tissue is smoothed and the recovery is lighter. Either way, he usually performs a biceps tenodesis at the same time.

What is a partial-thickness rotator cuff tear?

The rotator cuff is a group of four tendons deep inside the shoulder that attach the muscles of the shoulder blade to the ball of the shoulder and help start every motion of the arm. The top tendon, the supraspinatus, is the one that tears most often. A tendon has two surfaces: the underside faces the joint and the ball, and the top side faces the bursa, the thin sac that lets the tendon glide under the bone above it. A partial-thickness tear is described by where it starts.

Articular-side tears (undersurface tears). The tear starts on the underside of the tendon, the side facing the joint. Throwing and other overhead athletes are more prone to this kind, and so are athletes in contact sports (Kany et al., Knee Surg Sports Traumatol Arthrosc, 2026).

Bursal-side tears. The tear starts on the top surface of the tendon, the side that faces the bursa and the bone above it.

Intrasubstance tears. The tear is inside the tendon, splitting it into layers, while both surfaces still look intact. Reports also call these interstitial tears or delamination.

Partial tears are also described by depth. A low-grade tear involves a small part of the tendon's thickness; a high-grade tear goes most of the way through. The grade on an MRI report is an estimate, and it is one of several things Dr. Raynor weighs, along with your symptoms, your strength and what you need your shoulder to do.

Partial or full thickness: the hole in your jeans

Dr. Raynor explains the difference with a pair of jeans. A partial-thickness tear is like a spot where the denim has worn thin: damaged, but not through. A full-thickness tear goes all the way through. As he tells patients, "A little pinhole in your jeans is a full-thickness tear. A big gaping hole in your jeans is a full-thickness tear. Same word, two very different things." Full-thickness describes depth, not size, so it does not mean the whole tendon has come off the bone.

The difference that matters most is what can happen next. A partial tear or an irritated tendon can settle down and stop hurting. A full-thickness tear does not reattach to the bone on its own, although it can also become pain-free without surgery. That is why a partial tear almost always starts with treatment that lets the shoulder calm down.

How common are partial-thickness tears?

Very common, and more common with age. In an MRI study of 96 adults with no shoulder pain, partial-thickness tears were found in 4% of those aged 19 to 39, 24% of those aged 40 to 60, and 26% of those over 60. Full-thickness tears were also found, mostly in the oldest group, and none of these people had symptoms (Sher et al., J Bone Joint Surg Am, 1995).

Dr. Raynor's way of putting it: a tear on a scan is a finding, not an operation. Many people are walking around with a partial tear and have no idea. When one starts to hurt, the goal is usually to get it back to that quiet state.

What causes a partial-thickness tear?

Most partial tears are degenerative. They develop slowly over years as the tendon wears where it passes under the bone above it, and they often cause no trouble until something irritates the shoulder: a weekend of yard work, a new exercise routine, a long stretch of overhead work. In throwing and overhead athletes, repeated stress on the underside of the tendon plays a larger role.

Some are acute tears from an injury, such as a fall on an outstretched arm or a sudden pull. If an injury has suddenly left your arm weak or hard to lift, the Fast Track page explains how to be seen quickly, because acute tears from an injury are handled differently from tears that have built up over time.

What does a partial-thickness rotator cuff tear feel like?

Partial tears cause the same kinds of symptoms as other rotator cuff problems:

An ache on the outside of the upper arm, often worse at night or when lying on that side
Pain reaching overhead, behind your back, or out to the side
Pain in the front of the shoulder, where the biceps tendon runs next to the cuff
Pain that travels down toward the middle of the upper arm
Strength that is often close to normal, but painful to use

The amount of pain does not always match the size of the tear. The tendon and the bursa above it can become inflamed along with the tear, which is bursitis and tendinitis, and once they are irritated, everyday motion keeps re-irritating them. Dr. Raynor compares it to biting the inside of your cheek: once you bite it, you keep biting it. That is how a shoulder with a small partial tear can hurt for months, and also why calming the irritation often fixes the problem without touching the tear.

How is a partial-thickness tear diagnosed?

The exam comes first. A few minutes of strength and motion testing tells Dr. Raynor which tendon is painful, whether the arm is truly weak or only sore, and whether the biceps tendon is part of the problem.

X-rays are usually normal. They rule out arthritis, fractures and anything unexpected. A rotator cuff tear is a soft-tissue problem, so a normal X-ray does not mean nothing is wrong.

An MRI is often needed. The exam can tell that a tendon is painful, but it cannot tell how deep a tear goes, so diagnosing a partial-thickness tear often takes an MRI. The timing depends on the plan. If the first step is going to be therapy or an injection either way, the scan can wait; Dr. Raynor orders it when the shoulder has not responded to treatment, when there was an injury with weakness, or when surgery is being considered.

Even a good MRI is an estimate. Imaging has limits in describing exactly how deep and how wide a partial tear is (Kany et al., Knee Surg Sports Traumatol Arthrosc, 2026), and the final answer comes from looking at the tendon directly with the arthroscope during surgery (Plancher et al., J Am Acad Orthop Surg, 2021). Dr. Raynor reviews the images with each patient so the report's wording turns into a plan.

What your MRI report means

Radiology reports are written for doctors. These are the terms that come up most often with partial tears, in plain words:

Tendinosis or tendinopathy: wear and irritation inside the tendon, without a tear.
Fraying: roughening of the tendon surface; often a very shallow partial tear.
Partial-thickness tear: a tear that goes part of the way through the tendon. The tendon is still attached.
Articular-sided or undersurface: the tear is on the side of the tendon facing the joint.
Bursal-sided: the tear is on the top of the tendon, facing the bursa.
Intrasubstance, interstitial or delaminating: a split inside the tendon, between its layers.
Low-grade or high-grade: how deep the tear is. A high-grade tear goes most of the way through.
PASTA lesion: a partial articular-sided supraspinatus tendon avulsion, which is an undersurface partial tear of the top tendon where it attaches to the bone.
Full-thickness tear: a tear that goes all the way through, from the joint side to the bursal side. Full-thickness describes depth, not size.
Full-width: the tear runs across the whole width of the tendon.
Retraction: the torn tendon has pulled back away from the bone. This applies to full-thickness tears.
Atrophy or fatty infiltration: shrinking of the muscle behind the tendon, which matters most for large, long-standing full-thickness tears.
Subacromial bursitis or bursal fluid: inflammation of the bursa above the tendon, a common source of pain.
Biceps tendinosis or subluxation: irritation of the biceps tendon, or the tendon sitting partly out of its groove.

Dr. Raynor explains what a rotator cuff MRI shows: partial and full-thickness tears, a tendon that has pulled back, and the muscle behind it. Watch it with chapters and the full transcript.

Have your report with you? Tap any phrase to see what it means.

Will a partial tear heal, or get worse?

A partial tear can stop hurting even though the tear itself is still there, and many stay the same size for years. Some do grow, and partial tears grow less often than full-thickness tears.

In a study that followed 122 people with painful rotator cuff tears treated without surgery, using repeat MRIs over an average of about two years, 26% of partial-thickness tears got larger, compared with 82% of full-thickness tears (Kim et al., Knee Surg Sports Traumatol Arthrosc, 2017). A review that pooled 257 partial tears followed for an average of almost three years found that they progressed to full-thickness tears over time, but at a relatively low rate (Tsuchiya et al., J Shoulder Elbow Surg, 2021). High-grade tears progress more often: in a study of 52 high-grade partial tears treated without surgery, about 3 in 10 became full-thickness tears over an average of almost three years (Oh et al., Clin Orthop Surg, 2020).

What this means for you: a partial tear is not an emergency, and it is not a reason to rush into surgery. If the shoulder starts to feel weaker, the pain changes, or treatment that was working stops working, that is the time to have it rechecked.

Treatment without surgery

Dr. Raynor lays out the same options with every patient, starting with the one that gives you the most control.

Do nothing and live with it. Always an option for a partial tear that is not limiting you.
Physical therapy. Never the wrong answer. Strengthening the rotator cuff and the muscles around the shoulder blade takes load off the tendon and often settles the shoulder completely. Doing the exercises matters as much as going to the visits.
Activity changes. Easing off the overhead work, lifts or throwing that set it off, for a while, so the irritation can calm down.
Anti-inflammatory medicine for a flare, if you can safely take it.
A steroid injection to calm the shoulder down so therapy can do its job. Dr. Raynor considers an injection that gives about three months of relief a good result. One or two injections are reasonable. More than two can weaken the tendon, and in a systematic review, patients who had two or more steroid injections in the year before a rotator cuff repair were about two to three times as likely to need revision surgery (Cimino et al., Arthroscopy, 2020). If injections keep being needed, it is time for a different plan rather than another shot.

Trying these first costs little. A 2026 review that pooled 33 studies and 1,818 patients with partial tears found that shoulder scores after surgery were somewhat higher than after non-surgical treatment, but the difference was smaller than the amount patients typically notice as meaningful (Ricker et al., BMC Musculoskelet Disord, 2026).

When is surgery considered?

Dr. Raynor's approach is to make the shoulder prove it needs an operation. Surgery for a partial-thickness tear is considered when:

Pain or weakness persists after a real trial of physical therapy and, usually, an injection, and it is limiting your work, sleep or sport.
The tear is progressing, with a shoulder that is getting weaker or imaging that shows the tear getting larger or deeper.

The decision is made together, based on your symptoms, your exam, the MRI and what you need your shoulder to do, not on the MRI report alone. If another surgeon has already recommended an operation and you would like another look, see getting a second opinion on a rotator cuff tear.

What surgery for a partial tear involves

The operation is arthroscopic and outpatient: you go home the same day. Dr. Raynor works through four, sometimes five, small poke holes using a camera. You are asleep under general anesthesia, and before you go to sleep an anesthesiologist places an interscalene nerve block, which numbs the shoulder and arm so you wake up comfortable.

With the camera in the shoulder, Dr. Raynor looks at both surfaces of the tendon and decides what the tear needs. In general, the options are:

Cleaning up the tendon (debridement). For a shallower tear in an otherwise healthy tendon that does not need to be repaired, the frayed tissue is smoothed away so the tendon can settle down. Nothing is reattached. In Dr. Raynor's practice a cleanup alone is uncommon; it is usually paired with a biceps tenodesis.
Completing and repairing the tear. For a high-grade partial tear, where the tendon that is left is thin and weak, Dr. Raynor treats it like a full-thickness tear: the thin remaining tissue is taken down, and the tendon is reattached to the bone with small anchors so it can heal back in. The rotator cuff repair page explains that repair step by step.
Reinforcing a thin tendon with a collagen patch. For a partial tear that has not improved with treatment, Dr. Raynor sometimes lays a thin collagen patch over the tendon to support healing and thicken the tissue.
Moving the biceps tendon (biceps tenodesis). The biceps tendon makes a sharp turn through a tight groove at the front of the shoulder, right next to the cuff, and it is a common source of pain. Dr. Raynor usually performs a biceps tenodesis with rotator cuff surgery: he releases the tendon from inside the joint and reattaches it a little lower on the arm. It is usually done arthroscopically, and occasionally as an open procedure through a small incision near the armpit.

For high-grade partial tears, repair does well in the research. A systematic review of 19 studies found that arthroscopic repair of high-grade partial tears (defined in those studies as tears through more than half of the tendon's thickness) gave significant pain relief and good to excellent function, and that repairing the tear in place and completing it before repair produced similar results (Katthagen et al., Knee Surg Sports Traumatol Arthrosc, 2018).

Recovery after surgery for a partial tear

Pain after surgery varies a lot from person to person, and this is not a surgery where you feel good right away. The tendon has to heal and then get strong, and that takes a few months. If the tear is repaired, Dr. Raynor's usual timeline is:

Sling: 6 weeks after a repair.
Physical therapy: starts 1 to 2 weeks after surgery.
Strengthening: begins at about 3 months.
Tendon healed: about 4 months.
Back to what you want to do: most people by about 6 months.
Not thinking about the shoulder anymore: about a year.

If the tear did not need to be repaired, the recovery is lighter. Because Dr. Raynor usually moves the biceps at the same time, it typically follows his biceps tenodesis protocol: a sling for comfort for a week or two, full range of motion right away, no heavy lifting or strengthening for 3 months, and no real restrictions after 3 to 4 months. Your protocol sheet spells out which plan applies to you. The rotator cuff repair recovery roadmap walks through each stage, and the rotator cuff repair FAQs answer the day-to-day questions about sleeping, pain medicine and getting back to work.

Why patients choose Dr. Raynor for partial-thickness rotator cuff tears

Fellowship-trained in sports medicine at the Steadman Philippon Research Institute in Vail, Colorado
Board-certified orthopaedic surgeon; D Magazine Best Doctor every year since 2019
Team physician for the U.S. Ski and Snowboard Team, Highland Park High School, St. Mark's School of Texas, Hockaday and Ursuline Academy
Published shoulder research presented at the American Orthopaedic Society for Sports Medicine
A conservative approach to partial tears: therapy and time first, injections used deliberately, and surgery when the shoulder has shown it needs it

More about Dr. Raynor's rotator cuff care is on why patients choose Dr. Raynor as their Dallas rotator cuff surgeon.

The research, and common questions

The sections below collect the studies behind the numbers on this page and answer the questions patients ask most often about partial tears.

A partial tear or an irritated tendon can settle down completely and stop hurting, and many partial tears never cause trouble again. The tear may still show on a later MRI, but a shoulder that is pain-free and strong does not need the tear to disappear. A full-thickness tear is different: it does not reattach to the bone on its own, although it can also become pain-free without surgery.
Most do not, at least over the first few years. In a study of 122 people with painful tears treated without surgery and followed with repeat MRIs, 26% of partial-thickness tears got larger over an average of about two years, compared with 82% of full-thickness tears (Kim et al., Knee Surg Sports Traumatol Arthrosc, 2017). A review of 257 partial tears found that progression to a full-thickness tear happened at a relatively low rate over about three years, and at similar rates whether or not the tear hurt (Tsuchiya et al., J Shoulder Elbow Surg, 2021). High-grade tears are more likely to progress: about 3 in 10 of 52 high-grade partial tears became full-thickness over an average of almost three years (Oh et al., Clin Orthop Surg, 2020). Over the very long term, in a Swedish study that rechecked patients about 22 years after a procedure that made more room for the tendon without repairing it, most partial tears were unchanged, arthritis related to the tear was rare, and shoulder scores were generally good (Ranebo et al., J Shoulder Elbow Surg, 2017).
Not automatically. A high-grade partial tear is more likely to progress than a low-grade one, and it is the kind most often repaired when surgery is needed, but many people with a high-grade partial tear still do well with therapy. Dr. Raynor bases the recommendation on how your shoulder is behaving after a real trial of treatment, your strength, and what you need the shoulder to do, not on the grade alone.
For most people, not by enough to start there. A 2026 review of 33 studies and 1,818 patients found slightly higher shoulder scores after surgery than after non-surgical treatment, but the difference was smaller than the amount patients typically notice as meaningful, and no single surgical technique was better than the others (Ricker et al., BMC Musculoskelet Disord, 2026). That is why therapy comes first, and surgery is saved for the shoulder that does not respond.
Used sparingly, yes. An injection can calm an irritated tendon and bursa so therapy can work. Dr. Raynor considers one or two reasonable; more than two can weaken the tendon. In a systematic review, two or more steroid injections in the year before a rotator cuff repair were linked to about two to three times the chance of needing revision surgery, so if surgery becomes likely, it is scheduled with some distance from the last injection (Cimino et al., Arthroscopy, 2020).
Because much of the pain often comes from irritation around the tear rather than the tear itself. The bursa and the tendon can become inflamed, and once they are, everyday use keeps re-irritating them. A small partial tear with an angry bursa can hurt more than a larger tear that has been quiet for years. Calming that irritation is the goal of therapy and, when needed, an injection.
Often, yes, at some point. A partial tear cannot be seen on an X-ray, and the exam cannot measure how deep a tear goes. The timing depends on the plan: if the first step is therapy or an injection regardless of what the scan shows, it can wait. Dr. Raynor orders an MRI when the shoulder has not responded, when an injury caused weakness, or when surgery is being considered.
Often, yes, with adjustments. Activity below shoulder level is usually fine, and physical therapy will guide what to add back. Soreness afterward is information rather than damage. Weakness after an injury is different: stop and have the shoulder examined.
If the tear is repaired: a sling for 6 weeks, physical therapy starting 1 to 2 weeks after surgery, strengthening from about 3 months, a healed tendon at about 4 months, most people doing what they want by about 6 months, and about a year before you stop thinking about the shoulder. Recovery is slow at first because the tendon has to heal and then get strong. If the tear did not need to be repaired, the recovery is lighter: usually a sling for comfort for a week or two, full motion right away, and no strengthening until 3 months, because a biceps tenodesis is usually done at the same time. The recovery roadmap covers every stage.
Sher JS, Uribe JW, Posada A, Murphy BJ, Zlatkin MB. Abnormal findings on magnetic resonance images of asymptomatic shoulders. J Bone Joint Surg Am. 1995;77(1):10-15. DOI
Kany J, Iban MAR, Rosso C, et al. The 2026 ESSKA-ESA formal consensus on partial-thickness posterosuperior rotator cuff tears (Part 1): definitions, classifications, etiologies, natural history and diagnosis. Knee Surg Sports Traumatol Arthrosc. 2026. DOI
Plancher KD, Shanmugam J, Briggs K, Petterson SC. Diagnosis and management of partial thickness rotator cuff tears: a comprehensive review. J Am Acad Orthop Surg. 2021;29(24):1031-1043. DOI
Kim YS, Kim SE, Bae SH, Lee HJ, Jee WH, Park CK. Tear progression of symptomatic full-thickness and partial-thickness rotator cuff tears as measured by repeated MRI. Knee Surg Sports Traumatol Arthrosc. 2017;25(7):2073-2080. DOI
Tsuchiya S, Davison EM, Rashid MS, et al. Determining the rate of full-thickness progression in partial-thickness rotator cuff tears: a systematic review. J Shoulder Elbow Surg. 2021;30(2):449-455. DOI
Oh JH, Lee YH, Lee TH, Jang SI, Kwon J. The natural history of high-grade partial thickness rotator cuff tears: the conversion rate to full thickness tears and affecting factors. Clin Orthop Surg. 2020;12(4):514-520. DOI
Ranebo MC, Björnsson Hallgren HC, Norlin R, Adolfsson LE. Clinical and structural outcome 22 years after acromioplasty without tendon repair in patients with subacromial pain and cuff tears. J Shoulder Elbow Surg. 2017;26(7):1262-1270. DOI
Cimino AM, Veazey GC, McMurtrie JT, et al. Corticosteroid injections may increase retear and revision rates of rotator cuff repair: a systematic review. Arthroscopy. 2020;36(8):2334-2341. DOI
Ricker E, Stehling L, Klute L, et al. Surgical vs. non-surgical therapy for partial tears of the rotator cuff: a systematic review and meta-analysis of pooled studies with indirect comparison. BMC Musculoskelet Disord. 2026;27(1). DOI
Katthagen JC, Bucci G, Moatshe G, Tahal DS, Millett PJ. Improved outcomes with arthroscopic repair of partial-thickness rotator cuff tears: a systematic review. Knee Surg Sports Traumatol Arthrosc. 2018;26(1):113-124. DOI

Written and medically reviewed by M. Brett Raynor, M.D., board-certified orthopaedic sports medicine surgeon. Last reviewed October 2026. General information for patients; it does not replace an examination.