They run side by side down the lower leg bone (fibula) and behind the bony lump on the outside of the ... tendonitis can cause pain and swelling at the back of the ankle. It occurs due to overuse ...

It happens when the peroneal tendons, the peroneal longus and peroneal brevis, become inflamed as they run over your ankle and foot bones ... find the cause of pain in the outside of the foot ...