Why Foot Sores Don't Heal

Foot sores that will not heal are a major warning sign for diabetes. Diabetes can impair sensation in the feet, circulation, and normal wound healing, so even a blister can become a troublesome wound. Those sores also are prone to infection. Diabetics should wash and dry their feet and check them for any wounds every day. Slow-healing of sores also can be caused by poor circulation from conditions such as peripheral artery disease.