Muscle death or myopathy, a form of necrosis, is the result of a lack of blood to a muscle resulting in the muscle eventually ceasing to become a living cell. As dead tissue, the muscle then starts to rot, causing gangrene, poisoning the bloodstream and eventually resulting in the death of the patient unless the dead muscle is removed. Several things can cause muscle death, such as a lack of blood due to an infarction or a severe infection such as Necrotizing fasciitis. It is most commmonly seen in severe frostbites.