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Bacteria gather in an injury or surgical wound that has no blood supply.

Gas gangrene is most commonly caused by bacteria called Clostridium perfringens. It may make a crackling sound when you press on it because of the gas within the tissue. The surface of your skin may look normal at first.Īs the condition worsens, the skin may become pale and then turn other colors such as gray or purplish red. Gas gangrene typically affects deep muscle tissue. Wet gangrene needs to be treated immediately because it spreads quickly and can be deadly. It often occurs in people with diabetes who unknowingly injure a toe or foot. Wet gangrene may develop after a severe burn, frostbite or injury. Swelling, blistering and a wet appearance are common features of wet gangrene. Gangrene is referred to as wet if bacteria have infected the tissue. It occurs most commonly in people who have diabetes or blood vessel disease, such as atherosclerosis. This type of gangrene involves dry and shriveled skin that looks brown to purplish blue or black. If the bacteria infect tissues and remain untreated, gangrene can occur. Gunshot wounds or crushing injuries from car crashes can cause open wounds that let bacteria into the body. An untreated bacterial infection can cause gangrene. Without a proper blood supply, cells can't survive, and tissue dies. It also provides the immune system with antibodies to fight infections. The blood provides oxygen and nutrients to the body. Gangrene often affects the fingers or toes. The lack of blood flow causes tissue to die. Gangrene occurs when blood flow to a certain area of the body is interrupted. Sudden pain at the site of a recent surgery or trauma.Skin changes - including discoloration, warmth, swelling, blisters or lesions - that won't go away.

Call your health care provider immediately if you have persistent, unexplained pain in any area of your body along with one or more of the following signs and symptoms: Gangrene is a serious condition and needs emergency treatment. Fever, although some people may have a body temperature lower than 98.6 F (37 C).

Signs and symptoms of septic shock include: If the germs that caused the gangrene spread through the body, a condition called septic shock can occur. If gangrene affects tissues beneath the surface of your skin, such as gas gangrene or internal gangrene, you may also have a low-grade fever and generally feel unwell.