Mallet finger

Also called Baseball finger or Drop finger

Mallet finger is an injury to the tendon that straightens the end of a finger, often caused by something hitting the fingertip, such as a ball. The tip of the finger droops and you cannot straighten it on your own. Sometimes a small piece of bone is pulled off with the tendon.

Last updated Nov 9, 2026

What it is

It is usually treated with a splint that keeps the fingertip straight day and night for 6 to 8 weeks.

Surgery is sometimes needed if a large piece of bone is broken or the splint does not work.

Common signs

  • The tip of the finger droops
  • Being unable to straighten the fingertip on its own
  • Pain, swelling and bruising at the end joint

How it is usually diagnosed

  • Examination of the finger
  • X-ray

Records worth keeping

Keeping these together makes each appointment easier, especially when you see a new doctor:

  • X-ray reports
  • Hand therapy or fracture clinic notes
  • Splint instructions

Questions to ask your doctor

  • How long must I wear the splint?
  • What happens if I take it off?
  • Will the finger fully straighten again?

When to get help right away

Call 112 or go to the nearest emergency department if you have:

  • A finger that is cold, pale or numb, or a deep cut over the joint: get urgent medical help

This page is general information. It is not a diagnosis and does not replace a doctor who knows your history. Medfold keeps your records organised; it does not interpret them.

Sources