Trigger finger is a condition where the baby's finger does not move smoothly or is "stuck", in more severe cases it cannot be extended at all, always curled in a position like the image of a "trigger".

Trigger finger or trigger finger in children is a condition in which the fingers have difficulty extending, do not extend naturally, or are painful when attempting to extend. Trigger finger in children is usually affected in the thumb or index finger because the tendon sheaths of these fingers are long.

Trigger finger is a condition caused by inflammation of the annular ligament that fixes the flexor tendons of the fingers. The inflammation progresses to cause pain when flexing and extending the fingers, and movement is interrupted by a “pop” at a certain location of the finger, usually at the middle joint (proximal interphalangeal joint).

Dupuytren's contracture is a disease that progresses slowly over many years. It is characterized by hyperplasia of the palmar fascia and related structures. The cause is unknown, but is thought to be genetic. It is common in men over 50 years old. It usually affects the little finger and ring finger, or the entire hand.

Mallet finger is a term used to describe a fracture of the extensor bone or a rupture of the distal extensor tendon. This is one of the reasons why the patient cannot extend or move the distal interphalangeal joint normally, limiting the function of the hand. With advances in medical technology, finger drop can be treated and bring about a full recovery for the patient.