Gangrene refers to the death of body tissue due to either a lack of blood flow or a serious bacterial infection. Gangrene commonly affects the extremities, including your toes, fingers and limbs, but it can also occur in your muscles and internal organs.
Your chances of developing gangrene are higher if you have an underlying condition that can damage your blood vessels and affect blood flow, such as diabetes or hardened arteries (atherosclerosis).
Treatments for gangrene include surgery to remove dead tissue, antibiotics and hyperbaric oxygen therapy. The prognosis for recovery is better if gangrene is identified early and treated quickly.