Four Months After Rotator Cuff Repair and It Still Hurts: Normal, or a Retear?

The story below is a composite of real experiences; details changed.

Four months after rotator cuff repair, you reach for something, feel a pull, and one question takes over: Did I just tear it again?

That’s Rick Salazar’s week. He’s 51 and has pulled wire through commercial buildings for 30 years. Four months ago, a surgeon used a scope to stitch the torn tendon in his right shoulder back to the bone.

Second week of light duty, he reached for a coil of wire on the van’s top shelf, above head height. Something at the front of his shoulder gave. A hot pull, then an ache that rode home with him.

At 2 a.m. he was awake again. At 7 a.m. his foreman texted: “Need a date for full duty.”

Here’s what’s normal at month four, how often repairs really tear again, and what to do before you answer that text.

What month four is supposed to feel like

After a cuff repair, the tendon has to grow back onto the bone. That takes about three months. Good strength typically takes another two to three. (Washington University Orthopedics)

In Rick’s terms, month four is rough-in, not trim-out. Strengthening usually starts at 8 to 12 weeks. Most people have useful motion and decent strength by 4 to 6 months. (AAOS OrthoInfo)

Sleep lags too. In one study of 56 people, 38% still slept poorly six months after repair, about 4 in 10. (Am J Sports Med, 2015) If nights are the worst part, read when shoulder pain keeps waking you up.

Aching and a weak reach at month four are common. On their own, they don’t answer the retear question.

How often repairs tear again, and when

The honest part: retears happen, and month four sits inside the window.

A 2021 meta-analysis pooled 31 higher-quality studies and more than 2,500 repairs, counting only full-thickness gaps on imaging. (BMC Musculoskelet Disord, 2021)

• At 3 to 6 months: 21% of scans showed a retear, about 1 in 5. Each time point pooled different studies, so these numbers aren’t a timeline.
• By age: 14.4% under 60 and 24.3% over 60. About 1 in 7 versus 1 in 4.
• By tear size: 12.5% for small or medium tears and 37% for large or massive ones. About 1 in 8 versus more than 1 in 3.

Those are pooled averages, not your personal odds.

A Japanese study that scanned 638 repairs at set points found 41 retears. They peaked between 6 weeks and 3 months. Only 2 appeared after month six. (J Shoulder Elbow Surg, 2023)

Most retears happen early. Four months still counts as early.

A retear usually isn’t the end of the road

A 2023 meta-analysis pooled 3,350 people. At a median of 18 months, 1 in 4 repairs were torn again on imaging. (J Shoulder Elbow Surg, 2023)

Healed or not, people were on average “substantially improved” from before surgery. Healed repairs did better, most of all on strength. But the average gap on shoulder scores was 6 to 7 points out of 100, generally below what patients notice.

Most retears don’t need another operation, a 2019 review adds. (Orthop Traumatol Surg Res)

Twinge, stiffness or retear?

You can’t sort this out at home. You can describe it well for whoever examines you.

Sources: Johns Hopkins Medicine; Am Fam Physician; Cureus; BMC Musculoskelet Disord, 2026; AAOS OrthoInfo.

Scans after repair are tricky. On MRI, anchors and stitches can blur the picture, and an intact repair can look thick and uneven for years. Ultrasound has fewer metal artifacts and has done about as well as MRI at spotting retears. (J Ultrason, 2023) If you get a report, here’s how to read a rotator cuff report.

The scan shows the tendon. The exam decides whether it explains your pain.

Your boss wants a date

• The restriction. Oxford’s university hospital tells patients to avoid lifting, overhead and manual work for 4 to 6 months. (Oxford University Hospitals)
• The average. A 2021 review of 13 studies (1,224 people) found about 6 in 10 back at their previous work, at around 8 months. Heavier jobs did worse. (Am J Sports Med, 2021)
• Manual workers over 50. In one small series, 43 of 48 manual laborers aged 50 to 60 went back to manual work, about 9 in 10. (Am J Sports Med, 2022)

For overhead work, a full-duty date at month four is early. To stage the return with your boss, see going back to work after rotator cuff surgery.

Give your boss written restrictions and a recheck date, not a guess.

Questions for your follow-up

If you’ve seen BPC-157 come up after cuff repair

Plenty of people have. Here’s what’s actually been studied.

• The cuff study. In a 2014 meeting abstract, 48 rats had two cuff tendons detached, then got BPC-157 or saline. Over up to 12 weeks, researchers tracked walking, limb strength, range of movement, muscle wasting and leg length. They reported recovery similar to healthy rats. (FASEB J, 2014) We found no full paper, and it describes detached tendons, not a surgical repair.
• Tendon to bone. A 2006 rat study cut the Achilles tendon off the heel bone and followed it for three weeks. Its title reports “promoted tendon-to-bone healing.” (J Orthop Res, 2006)
• The wider evidence. A 2025 review found 36 BPC-157 studies in orthopedic sports medicine. Thirty-five were animal or lab studies. It found “no clinical safety data.” (HSS Journal, 2025)
• In people. We found no human trial with published results after rotator cuff repair. (ClinicalTrials.gov)

The animal work is why researchers keep looking. It isn’t a human result.

For legal status, see what a peptide’s label means. For the rat-tendon details, read what the tendon research on BPC-157 actually measured.

The text Rick sends instead

Rick doesn’t send a date. He calls the surgeon’s office and asks to be seen sooner. Then he texts back: “Restrictions after my appointment. Recheck date too.”

At the top of his question list, he writes the exact reach that caused the pull.

Your next step: call, describe the moment, and let the exam answer the question.

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Rick is a composite, drawn from the kinds of questions tradespeople ask after rotator cuff repair. The details are illustrative. Nothing here is medical advice. Research compounds are sold for laboratory research only.