What causes joint stiffness?

Stiffness after sitting or waking can occur when a joint and its surrounding muscles have not moved for a while. Osteoarthritis may cause activity-related stiffness, reduced range, and discomfort in a weight-bearing joint. Rheumatoid arthritis can cause persistent inflammatory stiffness and swelling in more than one joint. Stiffness in the shoulder that gradually limits reaching, dressing, or combing hair can occur with frozen shoulder. Morning stiffness with back or pelvic pain may point toward ankylosing spondylitis. The duration, affected joints, swelling, and effect of movement help separate these patterns.

Keep movement gentle and regular rather than forcing a stiff joint through sharp pain. Short walks, comfortable range-of-motion exercises, and warmth may help some people before activity. A physiotherapist can tailor strengthening, mobility, and pacing to the joint involved. Hydrotherapy may make movement easier because water supports part of the body’s load. Record triggers, morning duration, swelling, and activities that improve or worsen symptoms.

Arrange medical assessment if stiffness persists, progressively limits daily tasks, follows an injury, or comes with swelling, weakness, or night pain. Seek urgent care for a suddenly stiff, hot, red joint, fever, major injury, new numbness, or inability to use the limb. Early assessment can clarify whether the problem is mechanical, inflammatory, or another condition.

Ask which joints and tissues seem involved, whether tests or imaging are useful, and what movement is safe. Ask whether physiotherapy or hydrotherapy suits your symptoms, how to pace exercises, and which changes should prompt review.