Medial Ankle Pain: [Causes, Symptoms & Best Treatment] The #1 cause of medial ankle pain is posterior tibial tendonitis. We go over the 100% best treatment options as well as the causes and symptoms. Differential Diagnosis Common Tibialis Posterior Tendinopathy Flexor Hallicis Longus Tendinopathy     Less Common Medial Calcaneal Nerve Entrapment Calcaneal stress Fractures … Read more