Tendinitis is a painful condition due to inflammation and irritation of the tendon at or near its insertion and can be a very bothersome issue for many adults. The most common places to experience tendonitis in the foot and ankle are the Achilles, Tibialis Posterior, and Peroneal tendons. It is important to treat tendinitis promptly and effectively in order to prevent further issues. The most effective way to treat this disorder is with conservative care. This includes immobilization, bracing, stretching and physical therapy.