Heel Bursitis
Heel bursitis is characterized by the swelling of the bursa or fluid-filled sac at the back of your heel bone. This part works as a lubricant and cushion between muscles or tendons sliding over bones. Too much or repeated use of your ankle would cause the bursa to become inflamed or irritated, thus causing heel pain. Those people who often jump, run or walk every day might be at higher risk. Due to similar symptoms, many people often mistake bursitis for Achilles tendinitis. The pain tends to get worse during the day when you increase your level of physical activity. [3]
