Foot Ulcer: A foot ulcer is an open sore. Prolonged pressure on the foot causes the skin to react, forming a blister or callus. If the pressure continues, the skin may actually die resulting in an open sore or ulcer. Ulcers are most commonly found on the ball of the foot, the big toe, and the heel. People who have poor circulation, neuropathy (loss of sensation), or diabetes are at a greater risk for developing ulcers. Preventative measures, such as pressure relieving custom- molded orthoses are paramount in managing high risk individuals. Should an ulcer develop, the aim of treatment then becomes preventing bacterial infection and further ulcer formation. To help the ulcer heal, frequent ulcer cleansing and topical medications may be employed. Pressure relieving orthoses, antibiotics, and surgery may also be necessary.