In medicine, mallet finger is an injury of the extensor digitorum tendon of the fingers at the distal interphalangeal (DIP) joint. It results from hyperflexion of the extensor digitorum tendon, and usually occurs when a ball (such as a softball, basketball, or volleyball), while being caught, hits an outstretched finger and jams it. ...read more from Wikipedia
- A mallet finger is a common athletic injury.
- The affected finger may develop a deformity that is shaped like a swan's neck.
- It is also hereditary and does not always result from an injury.