The distal fibula is a bone in the lower leg on a human that is situated directionally on the outside of the leg. A common injury to this bone is a distal fibula fracture, in which the bone becomes cracked as the result of a direct impact or trauma, an excessive twisting motion, or an undue stress on the bone. The fibula is a fairly thin bone, making it more prone to fractures. It is also attached to the ankle, which is an area of the leg exceptionally prone to damage from stress or impact.

Children and athletes are most prone to a distal fibula fracture, and the condition can be quite painful, depending on the severity of the injury. A stress fracture can cause a very small, hairline crack in the bone, and these are usually the least painful distal fibula fracture types. The treatment for a hairline stress fracture will be adequate rest and immobilization to allow the bone to repair itself. The RICE treatment — rest, ice, compression, and elevation — is appropriate first aid should such an injury occur. It is often possible to walk on a leg suffering from a minor distal fibula fracture, but this risks worsening the injury.

More severe fractures can be exceptionally painful and will require more medical attention. Severe fractures may also be treated in the same manner as a hairline fracture, though a cast is likely to be set on the leg to prevent excess movement and the healing time may be fairly prolonged. The most severe distal fibula fracture occurrences may require surgery to repair the bone using plates and screws; if the bone has ruptured any surrounding soft tissue, the tissues may also need to be repaired during the surgery. Recovery time from such an injury can be quite long.

The most common way to suffer a distal fibula fracture is to roll the ankle severely. This is a common occurrence among children who are still developing coordination, and athletes who participate in regular vigorous exercise. Anyone can incur such an injury, however, and the signs of a distal fibula fracture include pain in the lower leg, pain in the ankle, swelling in the lower leg and ankle, and a loss or reduction in mobility. Anti-inflammatory medications may be prescribed by a doctor to help reduce inflammation, and painkillers can also be prescribed to help reduce pain and discomfort during the healing process.