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Health Library

Mallet Finger (Baseball Finger)

What Is Mallet Finger?

Mallet finger can be the result of an object hitting an extended finger. The finger or thumb may not straighten and will become painful or swollen. This condition is also known as “baseball finger.”


To receive a diagnosis, a qualified musculoskeletal expert will first take a medical history and conduct a physical exam. X-rays may be ordered to help determine if there is a fracture.

Common Causes

This injury occurs by a sudden blow to the tip of an extended finger.

Treatment Options

There are surgical and non-surgical treatment options. Most mallet finger injuries can be treated without surgery. A splint will be worn to keep the finger straight. Surgery may be considered when non-surgical options fail. An orthopedic surgeon will help to determine the best treatment option.

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