Peroneal tendonitis is inflammation in the tendons that run along your outer ankle bone and the side of your foot. These tough bands of tissue connect the muscles in your lower leg to the bones in your foot. They help stabilize and balance your foot and ankle, protecting them from injuries.

Peroneal tendonitis is an overuse injury causing pain on the outside of the ankle. Over time, the peroneal tendon rubs on the bone leading to inflammation and eventually degeneration of the tendon. Here we explain the symptoms, causes, and treatment for peroneal tendonitis.

Peroneal tendonitis, or an inflammation of the peroneal tendons, often presents as pain that is felt on the outside of the foot or outer ankle and gets worse with activity. It happens when the peroneal tendons, the peroneal longus and peroneal brevis, become inflamed as they run over your ankle and foot bones. These foot tendons can become ...

Peroneal tendonitis is a common cause of foot pain, particularly around the ankle. Frequently affecting runners or athletes who have upped their training, peroneal tendonitis usually develops slowly, gradually getting worse and worse.