Sprained thumb

Description

A sprained thumb is an injury to a ligament in the thumb. Ligaments are strong bands of tissue that connect bones. This injury happens when a ligament is stretched too far.

Overview

A sprained thumb often happens when the thumb is bent backward or away from the hand with force. With a mild sprain, a ligament is stretched but not torn. With a moderate sprain, a ligament is partly torn. With a severe sprain, a ligament is fully torn or pulled off the bone.

Symptoms

Symptoms of a sprained thumb depend on how serious the injury is. It's possible to have pain, swelling and bruising around the base of the thumb. Other symptoms include trouble moving the thumb or a weak grip. A serious sprain might cause swelling or a lump on the inside of the thumb. This might make it hard to grasp objects between the thumb and index finger.

Treatments

Treatment for thumb sprain depends on how serious the injury is. Pain relievers you can buy without a prescription may reduce pain and swelling. A mild sprain often is treated with rest, ice and gentle compression. A moderately sprained thumb might be placed in a bandage, cast or splint while it heals. A serious sprain may need to be fixed with surgery.