Finger Injury

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Injuries to fingers
Types of Finger Injuries

Cuts, Scrapes (skinned knuckles) and Bruises. These are the most common injuries.
Jammed Finger. The end of a straightened finger or thumb receives a blow. Most often, this is from a ball. The energy is absorbed by the joint surface and the injury occurs there. This is called traumatic arthritis. For jammed fingers, always check that the fingertip can be fully straightened.
Crushed or Smashed Fingertip. Most often, this is from a car door or a screen door. The end of the finger may get a few cuts or a blood blister. Sometimes, the nail can be damaged. Broken bones are not common with this kind of injury. If they do occur, they are at risk for a bone infection (osteomyelitis).
Fingernail Injury. If the nailbed is cut, it needs sutures to prevent a deformed fingernail.

Subungual Hematoma (Blood Clot under the Nail). Most often caused by a crush injury. This can be from a door crushing the finger. It can also be from a heavy object falling on the nailbed. Many are only mildly painful. Some are severely painful and throbbing. These need the pressure under the nail released. A doctor can put a small hole through the nail. This can relieve the pain and prevent loss of the fingernail.
Dislocations. The finger has been pushed out of its joint.
Fractures. Finger has a broken bone.