Stiff, painful index finger: what to know

Pain at the finger joint, especially with gripping or pinching, can occur with hand osteoarthritis. If the finger clicks, catches, or locks as it bends, trigger finger may be involved. Rheumatoid arthritis can affect finger joints with swelling and stiffness across more than one area. A firm cord or pulling sensation in the palm can occur with Dupuytren's contracture. A recent impact, cut, or forced bend raises different concerns. The index finger is essential for pinch and pointing, so even modest swelling can noticeably limit function.

Rest from forceful pinching, gaming, tool use, and repetitive gripping while keeping gentle comfortable motion. Warm water may ease stiffness before movement; use a protected cool pack if swelling follows a recent minor injury. Keep the hand elevated when it is puffy and avoid trying to force a click or locked position through resistance. A clinician or hand therapist can examine the joint and tendon and advise on support, exercises, or further evaluation.

Seek urgent care after an injury if the finger is crooked, numb, unusually pale or blue, deeply cut, or impossible to bend or straighten. Arrange an appointment for recurring locking, increasing swelling, warmth, weakness, or pain that interferes with writing and gripping. Fever or rapidly spreading redness needs prompt medical attention.

Ask whether the pain comes from the joint or tendon, whether a splint is suitable, how much movement to maintain, and what signs would require an earlier review.