A rotator cuff tear is one of the most common causes of shoulder pain and weakness that I evaluate in orthopedic practice. In Dhaka and across Bangladesh, many patients first describe it as a “shoulder muscle pull,” pain while sleeping on one side, or difficulty lifting the arm overhead. Some continue daily work, household chores, prayer movements, or sports for months before seeking proper evaluation. By that stage, the tendon damage may already be more significant.[1][2]

The rotator cuff is a group of four muscles and tendons that help lift the arm, rotate the shoulder, and keep the shoulder joint stable. When one of these tendons becomes partially or completely torn, patients may develop pain, weakness, night discomfort, and difficulty with daily activities such as dressing, bathing, combing hair, lifting a bag, or reaching to a high shelf.[1][2]

One important point I want Bangladeshi patients and families to understand is that not every rotator cuff tear needs surgery, but not every persistent painful shoulder should be ignored either. The right treatment depends on the type of tear, how long symptoms have been present, the patient’s age and activity level, whether the tear followed a sudden injury, and how much weakness or disability it is causing.[1][3]

What is the rotator cuff?

The rotator cuff is made up of four muscles and their tendons:

• supraspinatus
• infraspinatus
• subscapularis
• teres minor

Together, they act like a dynamic support system around the shoulder. I usually explain to my patients that these tendons help keep the ball of the upper arm bone centered in the shoulder socket while the arm moves.

Why rotator cuff tears matter

When the cuff is healthy, the shoulder moves smoothly and with control. When a tendon tears, the shoulder may become painful, weak, and less reliable. Even a person who can still move the arm may notice difficulty with overhead activity, lifting, or rotating the arm behind the back.

The most commonly affected tendon is the supraspinatus, but other rotator cuff tendons may also be involved.[1]

How a rotator cuff tear happens

In my practice, I usually see two broad patterns.

Degenerative or wear-related tears

Many tears develop slowly over time. This is especially common after the age of 40, though younger adults can also be affected. Age-related tendon wear, repeated overhead activity, poor shoulder mechanics, and cumulative stress can gradually weaken the cuff until it frays or tears.[1][3]

This pattern is common in:

• office workers with long-term poor posture
• homemakers doing repeated overhead chores
• laborers lifting repeatedly
• drivers with chronic shoulder strain
• older adults with persistent shoulder pain
• athletes with repeated overhead use

Acute or injury-related tears

A rotator cuff tear can also happen suddenly after:

• a fall on the outstretched hand
• a forceful lifting injury
• a road traffic accident
• a shoulder dislocation
• sudden pulling force on the arm

These acute tears often cause stronger pain and more obvious weakness from the beginning.[1][2]

What symptoms a rotator cuff tear can cause

The symptom pattern is often very suggestive.

Common symptoms

Patients may notice:

• pain on the upper or outer part of the shoulder
• pain while lifting or lowering the arm
• weakness when raising or rotating the arm
• difficulty reaching overhead
• pain when reaching behind the back
• night pain, especially when lying on the affected shoulder
• crackling, clicking, or a rough sensation during movement

AAOS notes that pain at rest or at night, pain with lifting, and weakness with shoulder movement are among the most common features of a rotator cuff tear.[1]

Symptoms after a sudden tear

When the tear happens after trauma, patients may feel:

• sudden sharp pain
• an immediate snap or pulling sensation
• sudden weakness in the arm
• inability to lift the arm comfortably

Can a tear exist without severe pain?

Yes. This is something many patients do not expect. Some tears, especially wear-related ones, may cause more weakness than pain. That is why I do not judge severity by pain alone.[1][3]

Partial tear vs full-thickness tear

This distinction matters.

Partial tear

A partial tear means part of the tendon is damaged, but the tendon is not fully detached.

Full-thickness tear

A full-thickness tear means the tendon is torn through its full depth, and in some cases it is no longer properly attached to the bone.[1][3]

Some patients also have larger or multi-tendon tears. These cases may cause more weakness, poorer shoulder control, and greater difficulty with recovery.

How I evaluate a suspected rotator cuff tear

Shoulder pain is not always a torn rotator cuff. It may also come from tendinitis, bursitis, frozen shoulder, arthritis, instability, neck-related pain, or muscle imbalance around the shoulder blade.

When I evaluate patients with this problem, I usually focus on:

• how the pain started
• whether there was a fall or trauma
• whether there is true weakness
• whether night pain is present
• whether overhead activity is difficult
• whether the shoulder is stiff
• whether there is pain around the neck as well
• whether the patient can still lift the arm actively

This matters because shoulder pain sometimes overlaps with conditions such as Shoulder Pain and Pain Around the Neck, and treatment changes when the true pain source is different.

How the diagnosis is confirmed

Clinical examination

The first step is careful history and physical examination. According to AAOS guidance, a proper orthopedic examination can strongly support the diagnosis of a rotator cuff tear.[3]

I assess:

• active and passive shoulder movement
• muscle strength
• pain pattern
• signs of stiffness
• specific cuff-related tests
• whether there are clues to another shoulder or neck problem

Imaging

Imaging is often used when the history and examination raise suspicion.

• X-ray can help identify bone spurs, arthritis, or other structural issues, though it does not directly show the tendon tear well.
• Ultrasound can be useful in experienced hands.
• MRI is commonly used to define the tear pattern, tendon retraction, and whether other structures are involved.[1][3]

AAOS notes that MRI or ultrasound used together with clinical examination increases the chance of identifying a rotator cuff tear accurately.[3]

Does every rotator cuff tear need surgery?

No. This is one of the most important things I explain to my patients.

Many rotator cuff tears can initially be treated without surgery, especially when:

• the tear is small or partial
• the pain is the main issue rather than major weakness
• daily function is still reasonable
• the patient is older and lower-demand
• symptoms are improving with structured treatment