Someone with diabetes and an untreated infection in a foot or leg might create gangrene. Gangrene will involve tissues dying due to extreme infection or diminished blood offer.   You will find there's difficulty with information submitted for this request. Overview/update the data highlighted down below and resubmit the form. https://www.sgvascularctr.com/swollen-leg-why-do-i-have-it-and-what-can-i-do/