Diabetics need to take great care of their feet to prevent serious complications. Diabetes can cause damage to the nerves and the blood supply. The loss of nerve function (neuropathy) in the legs and feet may develop overtime and foot injuries, ulcers, infections, and other problems can occur painlessly. Blood supply can become reduced or altered (poor circulation), which prevents foot injuries from healing. Symptoms of diabetic foot problems include pain or a tingling foot sensation in the feet at night. Common diabetic foot problems include: