Hand Tendon or Nerve Injury: Signs That Need Early Assessment

The hand contains tightly packed tendons, nerves, blood vessels, joints, and small muscles. Glass, metal, machinery, knives, falls, and crush injuries can damage deeper structures even when the surface wound looks limited.

A clinician assesses the injury mechanism, wound location, circulation, sensation, and the ability of each tendon to work. X-rays or other tests may be needed when fracture, foreign material, or joint injury is suspected.

A divided flexor tendon may make bending part of a finger difficult; an extensor injury may affect straightening. Nerve injury can cause numbness, tingling, altered feeling, or weakness in a particular pattern. Pain and swelling can also limit movement, so examination is needed to tell these problems apart.

Go to emergency care for uncontrolled bleeding, a pale or cold finger, severe crush injury, amputation, rapidly increasing swelling, or a contaminated wound. Animal or human bites to the hand also need timely medical attention because infection can become serious.

Initial care may include cleaning, tetanus assessment, antibiotics when indicated, imaging, splinting, and wound management. Confirmed tendon, nerve, vessel, or complex soft-tissue injuries may require surgical repair or reconstruction.

The operation is only one part of treatment. Hand therapy and a carefully timed movement programme help repaired structures glide while protecting them from rupture. Recovery can take weeks to months and varies with injury severity.

Remove rings if this can be done easily before swelling increases. Cover the wound with a clean dressing, keep the hand elevated, and avoid food or drink if emergency surgery may be needed, following local emergency guidance. Do not tightly tie anything around the finger or hand.

If part of a finger has been amputated, seek emergency help immediately. Wrap the part in clean damp gauze, place it in a sealed bag, and keep that bag cool beside ice-not directly on ice or in water.