Gangrene is a serious medical condition that occurs when body tissue dies. This happens when tissue loses its blood supply or becomes infected with certain bacteria. Without blood flow, cells cannot get oxygen and nutrients they need to survive.
There are two main types of gangrene. Dry gangrene develops slowly when blood flow is reduced or blocked, often in the hands, feet, or limbs. Wet gangrene happens when bacteria infect injured tissue, causing it to swell and decay rapidly. Wet gangrene is a medical emergency that can spread quickly and become life threatening.
Gangrene can also occur inside the body, affecting organs like the intestines or gallbladder. Gas gangrene is a rare but severe form caused by specific bacteria that produce gas in the tissue. All types of gangrene require immediate medical attention to prevent serious complications.