Subtalar Joint Arthritis – forming Portion of the ankle joint; this ailment may result from former ankle sprains, trauma, weight problems or past surgical procedure. Swelling and redness with the ankle, coupled that has a fever, may be an indication of an an infection that needs rapid treatment and intervention. https://www.theorthopaedicandpainpractice.com/the-definitive-guide-to-diagnosing-and-treating-ankle-pain-in-singapore/