What should you know about MP joint thumb pain?

The MP joint connects the thumb’s first long bone to the small bone near the hand. Pain there may be felt when pinching, gripping, opening a jar, or bending the thumb. Swelling, bruising, tenderness, clicking, or a feeling of looseness can point toward different problems. A fall, forceful bend, or impact raises concern for a sprain or fracture. Repeated hand use can irritate supporting ligaments or tendons. De Quervain's Tenosynovitis is another cause of thumb-side pain and has its own pattern of tenderness near the wrist: [De Quervain's Tenosynovitis](/conditions/de-quervain-tenosynovitis/).

Reduce gripping, lifting, texting, or other movements that reproduce the pain. Keep the thumb in a comfortable position and use a removable support only as advised, since prolonged restriction can make movement stiff. Cold wrapped in cloth may help early swelling; avoid placing ice directly on skin. Elevate the hand when swollen and return to gentle motion as comfort allows. A clinician or physiotherapist can check stability and guide exercises. Do not force a joint that looks crooked or try to push it back into place.

Arrange prompt assessment after an injury if the thumb is misshapen, markedly swollen, bruised, unstable, or difficult to move. Seek urgent help for a cold or pale thumb, loss of feeling, severe pain, or an open wound. A clinician should review pain that persists, returns with ordinary tasks, or interferes with sleep or work, even when there was no clear injury.

Ask whether the pain is coming from the MP joint, a nearby tendon, or the wrist; whether imaging is needed; how long to use support; and which movements are safe while the thumb heals. Ask when strengthening and normal gripping can resume.