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Shoulder Pain: Symptoms, Causes, Treatment and When to See a Physio

Shoulder pain is one of the most common upper-body problems treated in physiotherapy, and one of the most varied. It might be a dull ache after a desk day, a sharp catch when lifting your arm, a shoulder you cannot lie on at night, or an ache spreading from the neck into the shoulder blade.

The shoulder trades stability for mobility, it is the most mobile joint in the body, held together largely by muscle and tendon, which is why it produces so many different problems, and why understanding yours is the first step toward lasting relief.

Key Takeaways

  • Pain when raising the arm is the single most common shoulder complaint, and usually points to the rotator cuff, bursa or impingement rather than structural damage.
  • A shoulder that stays stiff even when someone else moves it points to frozen shoulder; a shoulder that is painful but movable points to the cuff and its neighbours.
  • Pain around the shoulder blade is regularly referred from the neck, which is why proper assessment tests both before treating either.
  • Shoulder or left arm pain arriving with chest tightness, breathlessness or sweating is treated as a possible heart problem: call 999.
  • Strengthening the rotator cuff and shoulder blade muscles is the best-evidenced treatment for nearly every shoulder condition on this page.

What is Shoulder Pain?

Shoulder pain refers to discomfort, stiffness, or weakness around the shoulder joint, upper arm, or shoulder blade area. It may come on suddenly after an injury or build gradually through postural strain or overuse.

In many cases it develops from irritation or overload of the muscles, tendons, or joints, most often involving the rotator cuff, the shoulder capsule, the bursa, or nearby nerves. Pain felt in the shoulder does not always start there either: the neck refers into the shoulder blade region constantly, which is why a proper assessment tests both before treating either.

Main Types of Shoulder Pain

Do Rotator Cuff Tears Need Surgery?

Rotator Cuff Strain or Tendinopathy

Pain when lifting or rotating the arm, typically from repetitive loading, a training spike, or gradual weakening. The signature is pain on the way up: reaching overhead, into a jacket, or for the seatbelt.
Frozen-Shoulder with red spot indicate pain

Frozen Shoulder (Adhesive Capsulitis)

Progressive stiffness and pain limiting movement in every direction, typically running months through its stages. The tell: the shoulder stays stiff even when someone else moves it.
Shoulder bursitis illustration showing an inflamed bursa beneath the acromion.

Shoulder Bursitis

Irritation of the bursa, the fluid cushion between the cuff tendons and the bone above them. It produces a diffuse outer-shoulder ache, sharp with overhead reach and sore to lie on, and it travels with cuff problems more often than it appears alone.
Arthritis-and-Degenerative with red spot indicate pain

Arthritis and Degenerative Changes

Stiffness, grinding and aching from wear-related change in the shoulder joints, more common with age and after old injuries.
Shoulder-Impingement with red spot indicate pain

Shoulder Impingement and Painful Arc

A pinching sensation during overhead movement, classically worst through the middle of the lift and easing at the top. Pain when raising the arm is the single most common shoulder complaint there is, and the cuff, the bursa and impingement patterns all produce their own version of it.
Postural-or-Overuse-Pain with red spot indicate pain

Postural, Neck-Referred and Shoulder Blade Pain

Aching between and around the shoulder blade, tight trapezius muscles, and pain that blurs into the neck, driven by desk hours, stress tension and muscle imbalance. Pain here is regularly the neck’s referral rather than the shoulder’s own, which assessment separates.
Why Does My Shoulder Hurt More At Night?

Post‑Injury or Post‑Surgery Pain

After dislocation, fracture, or surgical repair, managed through graded rehabilitation that rebuilds range, strength and confidence in stages. A shoulder that has dislocated once needs its stability rebuilt deliberately, or it tends to repeat.

Common Causes and Contributing Factors

  • Overuse or repetitive overhead movements, at work, in the gym, or in sport
  • Poor posture and rounded shoulders loading the cuff unevenly
  • Muscle weakness or imbalance in the rotator cuff and shoulder blade stabilisers
  • Sudden trauma, a fall onto the arm or outstretched hand
  • A previous shoulder injury or instability never fully rehabilitated
  • Stress and fatigue increasing muscle tension across the neck and shoulders

Often pain develops gradually with no single cause, from daily habits that overload some shoulder muscles while underusing others. Where the problem is tendon-driven, our tendonitis treatment page covers that pathway.

Symptoms and What They Mean

Shoulder pain feels different depending on the structure involved:
  • Sharp, catching pain when raising or rotating the arm, the impingement and cuff signature
  • Pain reaching behind your back, into a sleeve or bra strap, which points at the cuff and capsule
  • Night pain lying on the affected side, common across cuff and bursa problems, and pain in every position early in a frozen shoulder
  • Stiffness after inactivity, or a shoulder progressively losing movement
  • Weakness or reduced ability to lift and carry, and true weakness after an injury matters more than pain
  • Clicking or grinding with movement, which alone, without pain, is usually harmless
  • Pain at the front of the shoulder, typically the biceps tendon or the front of the cuff, or on top, where the collarbone meets the shoulder
Nerve symptoms change the story: pain with tingling into the fingers usually means the neck is involved rather than the shoulder itself, and that pattern deserves a nerve-aware assessment. Location, behaviour and history together are what separate these, which is exactly what your assessment does.

Clinical insight from One Body LDN
"Shoulders rarely fail at the ball and socket first. What we find on assessment, again and again, is a shoulder blade that has stopped doing its share of the movement, so the rotator cuff works overtime until it complains. It is why our rehabilitation so often starts behind the shoulder rather than on top of it."

Rebecca Bossick — Chartered Physiotherapist & Clinical Director

How Long Does Shoulder Pain Last?

Acute shoulder pain, under six weeks, often improves quickly with sensible load management and targeted physiotherapy. Sub-acute pain, six to twelve weeks, usually needs structured rehabilitation and progressive strengthening.

Persistent pain beyond twelve weeks benefits from a comprehensive programme that rebuilds shoulder strength, stability and confidence together, and shoulders reward that work reliably at any duration. The exception on timescales is frozen shoulder, which runs its own longer course through stages. Early assessment makes every version faster and prevents the stiffness and weakness that make later recovery slower.

When Shoulder Pain Needs Urgent Attention (Red Flags)

Most shoulder pain is mechanical and improves with physiotherapy, but some symptoms need urgent medical review:
  • Shoulder or left arm pain arriving with chest tightness, pressure, breathlessness, sweating or nausea, which can signal a heart problem: call 999
  • Sudden inability to move the arm after an injury, or visible deformity
  • A hot, swollen shoulder with fever or feeling unwell
  • Numbness, tingling, or weakness spreading down the arm, or progressing week on week
  • Severe pain following trauma or a dislocation
  • Unexplained swelling, a lump, weight loss, or constant pain unrelated to movement, including night pain no position eases

Your physiotherapist screens for every one of these at first assessment and refers to the right specialist the same day where needed. After a fall or impact, a fracture check comes first: our fracture treatment page covers that route.

How Physiotherapists Diagnose Shoulder Pain

During your consultation, your physiotherapist will:
  • Take a full history of your symptoms, work, training, and how the pain behaves
  • Assess shoulder movement, including the painful arc and what happens when someone else moves the arm, the test that separates a stiff joint from a painful tendon
  • Test rotator cuff strength and shoulder blade control
  • Identify signs of tendon, bursa, or nerve involvement
  • Rule out the neck as the true source, and screen for serious pathology

Where imaging, ultrasound, MRI or X-ray, would genuinely change the plan, your physiotherapist coordinates with your GP or specialist. Scan findings are read against your symptoms, because cuff changes appear on scans of pain-free shoulders too, and treating the image rather than the person leads care astray.

Physiotherapy Treatment for Shoulder Pain

Treatment follows the diagnosis:

Hands‑On Therapy

Deep tissue release, joint mobilisation, and soft-tissue techniques to settle pain and restore movement.

Exercise Therapy

Focused strengthening for the rotator cuff and shoulder blade stabilisers, the best-evidenced treatment for nearly every shoulder condition on this page, alongside posture work that changes the daily load.

Movement Retraining

Re-educating shoulder mechanics for lifting, desk work, and sport, so the same overload pattern stops repeating.

Rehabilitation Programmes

Staged progression to restore full range, rebuild strength, and prevent recurrence, through to sport-specific work.
For stubborn cases, dry needling, shockwave therapy for tendon problems, or Pilates-based strengthening can support the loading work where the evidence backs them.

How Physiotherapy Helps Long Term

Physiotherapy improves function and prevents recurrence by restoring shoulder strength and joint mobility, reducing inflammation and muscle tension, improving posture and overhead control, supporting your return to gym training, sport, and daily life, and teaching you to manage and prevent future flare-ups. The shoulder is a joint held together by muscle, which is why the strength built in rehabilitation is also the honest answer to keeping it well.

When to See a Physio

Book an assessment if:
  • Pain lasts more than a few days or returns frequently
  • Night pain is affecting your sleep or side-lying, a pattern with its own escalation rules covered in our guide to shoulder pain at night
  • You notice weakness, or cannot lift your arm fully
  • The shoulder is losing movement rather than gaining it
  • Pain interferes with gym work, sport, or daily activities
  • You are unsure what is safe to do

The full decision rules, by time, cause, and recurrence, sit in our guide to when to see a physio for shoulder pain, and our guide to finding a private physio for shoulder pain covers how to choose and verify the right clinician. Early care consistently shortens shoulder recoveries and prevents the compensations that prolong them.

Take the Next Step Toward Recovery

At One Body LDN, our physiotherapists treat the full range of shoulder problems, from rotator cuff issues and impingement to frozen shoulder and post-surgical rehabilitation. We combine thorough assessment, hands-on treatment, and personalised exercise programmes to help you move freely and confidently again. Direct access applies: no GP referral needed.

Book an appointment with a Shoulder Pain Physiotherapist

Learn more about shoulder pain

Frequently Asked Questions

Should I use ice or heat on a painful shoulder?

Ice suits fresh injuries and sharp flares, in short spells over the first day or two. Heat suits the stiff, tense, desk-driven patterns and eases movement before exercise. Either is symptom relief that buys comfortable movement; the strengthening does the repair.
Usually yes, modified: swap the sharply provocative lifts, often overhead pressing and deep bench range, for tolerable variations, reduce load, and keep everything the shoulder settles from within a day. Pain worsening session on session, or any new weakness, means assess before continuing.
Pressing parks high load on the cuff and biceps tendon at their most exposed angles, and pain there usually means load has outrun current capacity or technique is feeding one spot. Recurring gym shoulder pain is a programming-and-mechanics question worth one assessment, not repeated deloads.
Most often referred pain from the neck or the postural muscles that anchor the blade, rather than the shoulder joint itself, and the left or right side alone carries no special meaning. Blade-area pain that moves with your neck points up; pain with arm movement points to the shoulder.
Both shoulders usually means a shared load: desk hours, training jumps, or stress tension affecting each side equally. Both shoulders with marked morning stiffness, particularly over 60 with hip girdle aching, deserves a GP review, since inflammatory conditions can present exactly that way.
Many tears, especially partial and age-related ones, reach full comfortable function with strengthening alone, and trials comparing surgery with structured exercise show similar outcomes for many degenerative tears. Large traumatic tears in younger people with real weakness are the group where early surgical opinion matters.
It is most common between 40 and 60, more often in women, and people with diabetes or thyroid conditions carry higher risk. The same shoulder rarely freezes twice, but the other side can, in roughly one in five people, which makes early recognition the second time much easier.
Sometimes, as a means rather than an end: an injection can settle a shoulder too irritable to rehabilitate, particularly early frozen shoulder or acute bursitis. Injections without the strengthening that follows tend to buy weeks, not resolution, and repeated injections into tendons carry their own costs.
It can genuinely ease the muscular, tension-driven patterns and make movement more comfortable, and it works best as support for rehabilitation rather than the plan itself. Shoulder pain that returns after every massage is a capacity problem asking for strengthening.
Partly, at most. Posture changes how load lands on the cuff, and sustained positions outrun muscle endurance, but there is no single correct posture, and plenty of rounded, pain-free shoulders exist. The useful work is variety and strengthening, not bracing yourself upright all day.
Frozen shoulder concentrates exactly there, and hormonal change is thought to play a part alongside the known diabetes and thyroid links. Cuff problems also rise with age in everyone. The practical point: new, progressive shoulder stiffness in this group deserves assessment early, when treatment changes the course most.
No, outside fractures and post-surgical protocols. Shoulders punish immobilisation faster than almost any joint, and resting a painful shoulder still is one of the recognised routes into frozen shoulder. Keep it moving within comfortable range while the plan rebuilds its capacity.

References

Medically Reviewed

This page has been reviewed for clinical accuracy, clarity and patient safety in line with One Body LDN's Editorial and Clinical Standards.