A diabetic foot ulcer is an open sore or wound that appears on the bottom of the foot and may lead to amputation if not treated quickly.
Two complications from diabetes contribute to foot ulcers:
- Neuropathy, or nerve damage, reduces the sensation in the extremities. A small cut, bruise or puncture wound may not be noticed and can worsen into a sore.
- Poor circulation caused by excess blood sugar can inhibit healing blood flow to the feet.
Foot deformities, irritation from pressure or friction such as from wearing inappropriate shoes, and trauma can cause the formation of ulcers too.