Heel fracture 110 days heel swelling and pain may be caused by traumatic arthritis, infection, poor venous or lymphatic return. 1. Traumatic arthritis: due to the joint surface damage or intra-articular fracture does not meet the anatomical standard, due to the unevenness of the joint, long-term wear and tear can cause localized swelling and pain, thus forming traumatic arthritis. 2. Infection: due to the necrotic residue or poor vascularization, the surgical site is infected and does not heal for a long time, or even osteomyelitis is formed, and the patient can still have symptoms of swelling and pain in the heel even after 110 days of heel fracture. 3. Poor venous or lymphatic reflux: due to trauma caused by heel fracture directly or indirectly caused by venous or lymphatic damage, postoperative venous or lymphatic reflux is not good, the patient can be a long time with symptoms of heel swelling and pain. Heel fracture 110 days heel swelling and pain may also have other reasons, it is recommended to go to the hospital in a timely manner, improve the examination to clarify the cause of the disease, give targeted treatment or treatment.