Mallet finger is an injury to the outermost joint of a finger. Causes of mallet finger include tendon damage, small, or large fractures. Symptoms of mallet finger include pain, swelling, redness, tenderness, and the inability to extend the injured finger. Treatment for mallet finger depends on the severity of the injury.
Finger Injuries Finger injuries can vary from small cuts, lacerations, puncture wounds, broken bones, dislocations, sprains, strains, nerve injuries, jammed fingers, and animal or human bites. A person may experience bleeding, bruising, deformity, swelling, redness, or pus there is infection. Treatment for a finger injury depends on the type and severity of the injury.