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A 53-year-old man with a long history of diabetes presents to his physician with a complaint of ulcer and skin changes in his left foot. He does not feel any pain but it does not look good. He wondered why does he have this ulcer though he take all the treatments on time and he doesn’t remember if he hits anything by his foot or injured it by any means. His doctor explained to him why he acquired this ulcer.

What is the most common cause of diabetic foot ulcers in the USA?

A- Atherosclerosis of the main arterial supply of the lower limb

B- Arteriosclerosis of the small arterioles supplying the affected foot

C- Peripheral neuropathy

D- Treatment noncompliance




Answer:

Peripheral neuropathy is the most common complication of diabetes and is the main reason of diabetic foot. Peripheral neuropathy results in loss of sensation of distal parts of extremities. Repeated trauma leads to foot ulcers. Insufficient blood supply to the extremities is an important reason but not as common cause as peripheral neuropathy.

The correct answer is C