Inflammation on the bursa driving the heel is known as Retrocalcaneal Bursitis. Repetitive strain or friction over the again of the heel brings about the bursa to swell leading to heel pain and tenderness, swelling and ankle stiffness. Often associated with Achilles Tendonitis and Haglunds Deformity.   Higher Ankle Sprain – https://ankle-pain-singapore33220.ampedpages.com/not-known-facts-about-ankle-pain-singapore-61094604