Shoulder Stiffness: Causes, Assessment and Treatment

Stiffness may feel like tightness, resistance, or a shoulder that will not move through its usual arc. Reaching overhead, behind the back, or across the body may become difficult. Some people notice aching at rest or disturbed sleep, while others mainly feel restricted movement. It may affect active movement, assisted movement, or both.

Shoulder stiffness can result from inflammation, injury, joint changes, or protective muscle guarding, so assessment guides treatment.

Seek urgent assessment after a significant injury if the shoulder is visibly deformed, the arm cannot be moved, or there is new numbness, marked swelling, or unusual colour or temperature in the hand. Fever with a hot, swollen shoulder also needs prompt medical attention. Stiffness that develops gradually can usually be reviewed routinely, but persistent loss of movement should not be ignored.

These causes are arranged alphabetically rather than by likelihood. The pattern of restriction, pain, weakness, and preceding injury helps a clinician decide what needs attention.

A clinician asks how the stiffness started, whether there was an injury or period of reduced use, and which tasks are affected. They measure active and assisted movement, compare sides, and check strength, sensation, and neck-related signs. If a tear, joint change, or another structural cause is suspected, imaging may be selected to answer a specific question. The examination often shows whether the limitation comes mainly from pain, weakness, or the joint itself.

Treatment aims to improve movement while controlling irritation. Physiotherapy may use gentle mobility work, stretching, posture and movement changes, followed by strengthening as range improves. A frozen shoulder often benefits from a paced programme that respects painful limits. A rotator cuff tear may need protection from aggravating loads, rehabilitation, and specialist discussion when weakness or injury severity calls for it. Joint osteoarthritis is managed with regular comfortable movement, strength work, activity adaptation, and pain-management options discussed with a clinician.

Keep the shoulder moving within a comfortable range during periods of desk work, travel, or recovery, unless a clinician has advised restriction. Change position regularly and avoid abruptly increasing overhead or lifting demands. Strengthen the shoulder and upper back with a programme appropriate to your current movement. After injury or surgery, follow the planned progression rather than forcing a stiff joint.

Pain at night, swelling, weakness, tingling, clicking, fever, or a feeling of instability changes the clinical picture. Note whether stiffness is worse after rest, whether it is improving, and which direction feels blocked. These details help separate a movement limitation from a nerve, tendon, or joint problem.

Arrange review when stiffness lasts, interferes with dressing or work, or follows an injury. Early assessment can establish a useful movement baseline and prevent you from repeatedly forcing a painful range. A clinician can then recommend home exercises, physiotherapy, imaging, or specialist care according to the findings.