If you are diabetic and your legs turn black, will the skin stay black forever?

Gangrene: Legs turning black in diabetes make me think of gangrene, a condition caused by arrested blood supply to the affected limb. It's a life threatening condition in that if it is failed to be treated promptly it may lead to limb amputation, infection and significant morbidity. The black skin is considered non-viable and will be removed until live one is reached.

Probably: Depending on how long your leg has been black the chance of the tissue returning to normal tissue is very low. The important thing to know is to be seen by a vascular surgeon to help decrease the amount of dead tissue expanding. You will need to increase the blood flow to the tissue which a vascular surgeon can help with. Unfortunately, u may be a candidate for an amputation of the black tissue.