There are two peroneal tendons, which run behind the lateral malleolus—a fancy term for the outer knob-like ankle bone—and along the back of the fibula (shin bone). These include the peroneus ...

If your pain or swelling is on the outer ankle, it’s likely peroneal tendonitis ... This may be the case if you have: A bone spur or growth that is irritating the tendon A tendon that is ...