Mallet finger, also known as baseball finger, is a condition where the extensor tendon at the tip of the finger is damaged, often due to a forceful impact or injury. This can result in the inability to fully extend the fingertip. Treatment typically involves splinting the fingertip in a straight position for several weeks to allow the tendon to heal. In some cases, surgical intervention may be necessary. It’s important to seek medical evaluation for proper diagnosis and management of mallet finger to prevent long-term deformity and functional impairment.