Inflammation in the bursa at the rear of the heel is known as Retrocalcaneal Bursitis. Repetitive tension or friction about the again with the heel will cause the bursa to swell leading to heel pain and tenderness, swelling and ankle stiffness. Frequently associated with Achilles Tendonitis and Haglunds Deformity.   Repetitive https://www.theorthopaedicandpainpractice.com/the-definitive-guide-to-diagnosing-and-treating-ankle-pain-in-singapore/