Rotator cuff injuries can cause shoulder pain, weakness, and limited mobility. Dr Foo offers precise diagnosis and customised treatment to restore shoulder function and ease discomfort.

Dr Foo Gen Lin of Apex Sports Clinic.
Dr Foo Gen Lin
MBBS (University of London) | MMed (Ortho) | FRCSEd (Ortho) | FAMS (Ortho)
  • Over 15 Years of Experience
  • Over 30,000 Patients Seen
  • Minimally Invasive Treatment & Non-surgical Options Available
Dr Foo Gen Lin of Apex Sports Clinic. Dr Foo Gen Lin of Apex Sports Clinic.

What Is a Rotator Cuff Injury?

Woman holding shoulder in pain from rotator cuff tear causing weakness and stiffness.

A rotator cuff injury occurs when one or more of the muscles and tendons stabilising the shoulder joint become strained, inflamed, or torn. These injuries can range from mild inflammation (tendinitis) to partial or complete tendon tears, affecting shoulder movement and strength.

The rotator cuff comprises four muscles and their tendons, which secure the humerus (upper arm bone) within the shallow shoulder socket. Damage to these structures can significantly impair daily activities, making it difficult to lift objects, reach overhead, or even perform routine tasks like dressing or sleeping comfortably.

If left untreated, they can lead to chronic shoulder dysfunction and long-term weakness.


What Causes a Rotator Cuff Tear or Injury?

Rotator cuff injuries are commonly caused by repetitive strain, age-related degeneration, trauma, or structural abnormalities in the shoulder.

  • Age-Related DegenerationReduced blood supply, collagen breakdown, and repeated microtears progressively weaken the tendons, increasing the risk of injury.
  • Repetitive Overhead Activities – Frequent overhead motions, such as lifting, throwing, swimming, or painting, place continuous stress on the tendons, leading to inflammation and potential tearing over time.
  • Acute Injury – A sudden fall, direct impact, or forceful arm movement can overstretch or tear the rotator cuff tendons, often resulting in immediate pain and loss of function.
  • Poor Posture and BiomechanicsForward-rounded shoulders, muscle imbalances, or improper movement patterns place excessive strain on the rotator cuff, increasing the risk of degeneration and tearing.
  • Bone Spurs (Shoulder Impingement Syndrome) – Bony overgrowths on the acromion (shoulder blade) can press on the rotator cuff tendons, causing irritation, inflammation, and potential tearing over time.

Symptoms of a Rotator Cuff Injury

Rotator cuff injuries often cause shoulder pain, weakness, and reduced mobility, which can progressively worsen without treatment. Common symptoms include:

Man struggling to sleep due to shoulder pain from rotator cuff injury.
  • Persistent shoulder pain, especially when reaching overhead, lifting objects, or lying on the affected side at night.
  • Shoulder weakness, particularly when lifting or rotating the arm, making tasks like reaching overhead, carrying objects, or even combing hair difficult.
  • Restricted range of motion, making it hard to raise the arm, reach behind the back, or perform everyday activities.
  • Swelling and tenderness around the front and side of the shoulder, sometimes accompanied by stiffness.
  • Clicking, cracking, or popping sounds when moving the shoulder joint, which may indicate tendon involvement.
Shoulder & Elbow Icon If left untreated, a rotator cuff injury can worsen over time, leading to chronic pain, reduced mobility, and difficulty performing daily activities. If you are experiencing persistent shoulder pain, weakness, or limited movement, consult a shoulder specialist for a proper evaluation and a personalised treatment plan.
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Rotator Cuff Tear & Injury Diagnosis

A rotator cuff injury is typically diagnosed through a combination of medical history review, physical examination, and imaging tests.

  1. Medical History Review – A review of your symptoms, previous injuries, and daily activities that may contribute to shoulder pain.
  2. Physical Examination – A physical assessment of your shoulder strength, range of motion, and pain triggers through specific movement tests to identify possible tendon involvement.
  3. Imaging Tests
    1. X-rays – While X-rays do not show soft tissue injuries, they can identify bone spurs or other structural abnormalities contributing to shoulder pain.
    2. Ultrasound or MRI Scans – These imaging techniques provide detailed views of soft tissues, helping detect tendon inflammation, tears, or degeneration.

Rotator Cuff Injury Treatment

Treatment for rotator cuff injuries ranges from conservative management to surgical intervention, depending on the severity and cause of the injury.

Treatment Approach Description & Purpose
Non-Surgical Management
Rest and Activity Modification Avoiding movements and activities that worsen pain allows the shoulder to heal and prevents further strain on the rotator cuff.
Pain and Inflammation Management Pain medications and non-steroidal anti-inflammatory drugs (NSAIDs) help manage discomfort and reduce swelling. Icing can also help minimise acute inflammation, while heat therapy alleviates muscle stiffness and enhances circulation.
Physiotherapy and Rehabilitation Exercises Structured, targeted exercises strengthen rotator cuff muscles, improve flexibility, and enhance shoulder stability, aiding recovery and preventing further injury.
Injection-Based Treatment Includes corticosteroid injections for temporary pain relief and inflammation reduction in the rotator cuff, though repeated use may weaken tendons over time. Hyaluronic acid injections help improve joint lubrication and reduce discomfort in cases of associated shoulder degeneration. Platelet-Rich Plasma (PRP) therapy uses a patient’s own platelets to help promote tendon healing and reduce inflammation.
Surgical Intervention
Shoulder Arthroscopy A minimally invasive procedure involving a small incision and the use of a camera to guide the reattachment of the torn tendon to the bone with sutures.
Open Tendon Repair A traditional surgical method involving a larger incision to access and repair the damaged tendon, typically used for more extensive tears.
Shoulder Replacement Surgery (Arthroplasty) In cases of severe tendon damage and joint degeneration, the shoulder joint is replaced with an artificial implant to restore function and relieve pain.

Rotator Cuff Injury & Tear Recovery

Recovery time for rotator cuff injuries depends on injury severity, treatment approach, and individual healing response.

Specialist assessing recovery after rotator cuff tear surgery.
  • Mild to moderate injuries (e.g., tendinitis or small tears) may heal within 4 to 12 weeks with conservative management.
  • Post-surgical recovery:
    • Shoulder Arthroscopy – Recovery generally takes 4 to 6 months, as this minimally invasive procedure allows for faster healing, with full strength and function typically regained in 9 to 12 months through physiotherapy.
    • Open Repair – Requires 6 to 9 months due to the larger incision and more extensive tendon reattachment, leading to a longer healing process.
    • Shoulder Replacement – Full recovery may take 6 to 12 months, as joint reconstruction and muscle adaptation require extended rehabilitation, depending on the severity of joint damage and post-surgical recovery progress.

Can a Rotator Cuff Injury Be Prevented?

While some risk factors are unavoidable, several strategies can reduce the likelihood of a rotator cuff injury:

  • Strengthening Shoulder MusclesTargeted exercises to strengthen the rotator cuff muscles (supraspinatus, infraspinatus) and scapular stabilisers improve shoulder stability and reduce strain.
  • Maintaining Good Posture – Keeping the shoulders aligned and avoiding slouching minimises unnecessary stress on the rotator cuff.
  • Gradual Progression in Physical Activities – Increasing exercise intensity or lifting too quickly can overload the shoulder; gradual progression allows muscles and tendons to adapt safely.
  • Using Proper Technique – Maintaining correct biomechanics in repetitive or overhead movements prevents excessive shoulder stress and reduces injury risk.

When Should You Seek Medical Attention?

You should seek medical attention if you suspect a rotator cuff injury or if you experience:

  • Persistent or worsening shoulder pain lasting more than a few weeks despite rest and home treatment.
  • Significant weakness or loss of function in the affected arm, making it difficult to lift objects or perform daily activities.
  • Pain that disrupts sleep, especially when lying on the affected side.
  • A sudden injury causing intense pain, swelling, or an inability to move the shoulder.
  • Clicking or popping sounds accompanied by pain or instability in the shoulder joint.

Every patient deserves a treatment plan tailored to their needs. We start with non-surgical approaches before considering more invasive interventions.

Dr Foo Gen Lin: Orthopaedic Specialist & Surgeon

Dr Foo Gen Lin

Find a Shoulder Specialist Near Me

Apex Novena

8774 5468
admin@apexsportsclinic.sg
101 Irrawaddy Rd, #18-12 Royal Square Medical Centre, Singapore 329565
Nearest MRT: NS20 Novena

Apex East Coast

8321 9004
admin@apexsportsclinic.sg
112 E Coast Rd, #03-03/04 i12 Katong, Singapore 428802
Nearest MRT: TE26 Marine Parade

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Dr Foo Gen Lin using a knee model to explain treatment options during patient consultation.

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Frequently Asked Questions (FAQs)

Whether a rotator cuff tear can heal on its own depends on its severity. Small or partial tears may improve with rest, physiotherapy, and activity modification, which strengthen surrounding muscles and reduce pain. However, larger or complete tears do not heal naturally because torn tendon fibres cannot reattach to the bone and may require surgical repair. If you suspect a rotator cuff injury, it is advisable to consult an orthopaedic specialist for proper evaluation.

A torn rotator cuff often causes shoulder pain during lifting or rotation, weakness, and difficulty raising the arm overhead. Pain may worsen at night or when lying on the affected side, and some may notice clicking or stiffness with movement. Diagnosis usually requires a physical examination and imaging such as ultrasound or MRI to confirm tendon damage. If you experience persistent shoulder pain or suspect a rotator cuff injury, it is advisable to seek medical evaluation and treatment to prevent further damage.

The most suitable treatment for a torn rotator cuff depends on the severity of the tear. Rest, physiotherapy, and anti-inflammatory medication can help manage mild or partial tears, while severe or full-thickness tears may require surgical repair to restore shoulder strength and function. Early diagnosis and a structured rehabilitation programme improve recovery outcomes. If you suspect a tear or are experiencing symptoms, it is advisable to consult an orthopaedic specialist for an appropriate treatment plan.

If left untreated, a torn rotator cuff may worsen over time, leading to chronic shoulder pain, stiffness, and progressive weakness. The tear can enlarge, making future repair more difficult and potentially leading to permanent loss of motion or shoulder arthritis. Persistent pain may also interfere with daily activities and sleep. If you suspect a rotator cuff tear or experience related symptoms, it is advisable to see an orthopaedic specialist for proper assessment and treatment planning.

A shoulder brace may provide temporary support and pain relief by limiting excessive movement, but it does not heal the torn tendon. Bracing is usually used alongside physiotherapy and medication in conservative treatment. Over-reliance on a brace can cause muscle weakness if used for too long. It is advisable to consult your physiotherapist or orthopaedic specialist on whether a brace is appropriate for your condition.

Sleeping position can significantly influence rotator cuff pain. Lying on the affected shoulder often increases discomfort and stiffness, whereas sleeping on the opposite side with a pillow supporting the injured arm can reduce pressure. Back sleeping with a pillow under the arm may also ease strain on the shoulder. It is advisable to consult your doctor or orthopaedic specialist for personalised guidance on suitable sleeping positions.

Rotator cuff tears are most common in individuals over 40 due to age-related tendon degeneration and reduced blood supply. However, younger people engaged in repetitive overhead sports or heavy lifting may also experience tears from overuse or trauma. The likelihood increases with age, particularly after 60, as tendons become more prone to wear and weakening. Early strengthening and posture correction can help lower risk.

A rotator cuff tear involves partial or complete tendon damage, while tendonitis refers to inflammation without structural tearing. Tears often cause persistent weakness and difficulty lifting the arm, whereas tendonitis usually leads to pain during activity that improves with rest. Imaging such as ultrasound or MRI is often required to confirm a diagnosis. If you are experiencing shoulder pain that persists or limits movement, it is advisable to seek medical evaluation and treatment.

Warning signs include pain or weakness when lifting or rotating the arm, difficulty reaching overhead, or discomfort when lying on the affected shoulder. However, home checks cannot reliably distinguish between a tear, tendonitis, or impingement. Clinical evaluation and imaging are required for precise diagnosis. If you experience shoulder pain that persists or restricts movement, it is advisable to seek professional medical evaluation and appropriate treatment.

Rest is important during the initial phase to reduce pain and inflammation, but prolonged inactivity can cause stiffness and weakness. Gentle, medically supervised exercises introduced gradually help restore strength and flexibility as healing progresses. Overexertion or premature activity can worsen the injury. It is advisable to follow the guidance of a physiotherapist or orthopaedic specialist for an appropriate rehabilitation plan.

Rotator cuff pain is usually felt in the front or outer shoulder and may extend down the upper arm. It often worsens with lifting or overhead movements and can disturb sleep when lying on the affected side. The pain may range from a dull ache to sharp discomfort depending on the injury’s severity. If you experience persistent or limiting shoulder pain, it is advisable to seek medical evaluation and treatment.

Many partial rotator cuff tears can improve without surgery through rest, physiotherapy, and anti-inflammatory treatments. Strengthening surrounding muscles helps restore stability and function. However, large or complete tears usually do not heal on their own and may require surgical repair to regain full strength. It is advisable to consult an orthopaedic specialist to determine the most appropriate treatment based on tear severity.

A torn rotator cuff involves damage to the shoulder tendons, while bursitis refers to inflammation of the fluid-filled bursa that cushions the joint. Both conditions cause shoulder pain and limited motion, but tears often result in weakness or difficulty lifting the arm. A proper medical evaluation, including imaging such as ultrasound or MRI, can help distinguish between the two.

Rotator cuff tears usually cause sharp pain and weakness when lifting or rotating the arm, whereas shoulder arthritis leads to deep, aching pain with stiffness and reduced range of motion. Imaging tests such as X-rays and MRI scans help differentiate between tendon damage and joint degeneration. If you experience ongoing shoulder pain or mobility loss, it is best to consult an orthopaedic specialist for a proper diagnosis and appropriate treatment.

Conditions such as shoulder impingement, bursitis, frozen shoulder, or arthritis can resemble rotator cuff pain. Neck problems like cervical radiculopathy may also cause referred pain to the shoulder. As each condition affects movement differently, self-diagnosis is often unreliable. Imaging tests such as MRI or ultrasound are usually needed to confirm the cause. If you experience shoulder pain or related symptoms, it is advisable to seek a proper diagnosis from a specialist.

Massage can help relieve muscle tension and improve blood flow around the shoulder but should be performed cautiously. Deep tissue or aggressive techniques can worsen tendon damage, especially in acute or severe tears. Gentle massage by a trained therapist may complement physiotherapy in reducing stiffness and discomfort. It is advisable to consult your orthopaedic specialist or physiotherapist before proceeding.

Heat therapy can help relax shoulder muscles, reduce stiffness, and improve circulation, particularly during later stages of healing. However, it is not recommended during the early inflammatory phase, when ice is more effective at reducing swelling and pain. Alternating heat and cold may also be beneficial depending on symptom progression. Always follow the advice of your physiotherapist or specialist regarding the most suitable approach for your condition.

You can often move your arm with a torn rotator cuff, but movement may be painful and restricted. Partial tears may still permit limited lifting or rotation, while complete tears can cause marked weakness and difficulty raising the arm overhead. Forcing movement can aggravate the injury and delay healing. Always follow the advice of your doctor or specialist regarding safe shoulder movement during recovery.

Bicep curls can sometimes be tolerated in mild shoulder injuries if performed with light weights and proper technique, but they may aggravate pain if the rotator cuff is inflamed or torn. The exercise activates shoulder stabilisers, which can place extra stress on injured tendons. It is advisable to avoid upper arm exercises until cleared by your physiotherapist or specialist, who can recommend suitable modifications for your stage of recovery.

Yes, rotator cuff injuries can sometimes lead to neck or upper back pain because strained shoulder muscles may cause nearby neck muscles to overwork, resulting in tension and stiffness. In some cases, the pain may also come from separate neck conditions such as nerve compression. If you experience both shoulder and neck pain that persists, it is advisable to consult a specialist for a thorough assessment.