Heel bursitis, also known as retrocalcaneal bursitis, is a painful condition that affects the bursa, a small, fluid-filled sac located at the back of the heel, which is, in fact, a sort of cushion.

Fat pad atrophy may occur in the elderly or in patients with a history of multiple cortisone injections into the heel. Subcalcaneal bursitis presents as central plantar heel pain, often with a ...