Diabetic infections in the feet or legs can progress quickly into serious health complications, so WebMD advises diabetics to consult their doctors if they have any signs of infection, such as swollen feet or legs. Diabetic neuropathy is nerve damage caused by prolonged high blood sugar, and this condition both increases the risk of foot infection and dulls the pain that warns of infection. Diabetics should also consult their doctors if they have any sores or blisters that appear infected.
Individuals with diabetes should perform daily foot checks and practice good foot care to prevent small problems from becoming serious health issues, the American Diabetes Association suggests. Diabetics should check their feet daily for signs of skin changes, sores, poor circulation and swelling. They should mention changes in or concerns about their feet or legs to their physicians, who should examine their feet annually.
Swollen feet are the result of an abnormal build-up of fluid in the feet or ankles, and is often unrelated to diabetes. Swollen feet are often caused by being overweight, having an advanced age, and sitting or standing for long periods of time.