Gangrene wani nau'in mutuwa ne na nama wanda rashin isasshen jini ke haifarwa. Alamun na iya haɗawa da canjin launin fata zuwa ja ko baki, raɗaɗi, kumburi, zafi, fashewar fata, da sanyi. An fi shafar ƙafafu da hannaye. Wasu nau'ikan na iya kasancewa tare da zazzaɓi ko sepsis. Abubuwan haɗari sun haɗa da ciwon sukari, cututtukan jijiya na gefe, shan taba, babban rauni, shaye-shaye, HIV/AIDS, sanyi, da ciwon Raynaud. Ana iya rarraba shi azaman gangrene bushe, rigar gangrene, gangrene gas, gangrene na ciki, da necrotizing fasciitis. Sakamakon ganewar gangrene yana dogara ne akan alamun bayyanar cututtuka kuma ana goyan bayan gwaje-gwaje kamar hoton likita. Jiyya na iya haɗawa da tiyata don cire mataccen nama, maganin rigakafi don magance duk wata cuta, da ƙoƙarin magance abin da ke haifar da shi. Ƙoƙarin fiɗa na iya haɗawa da ɓarna, yanke jiki, ko kuma amfani da maganin tsutsotsi. Ƙoƙarin magance abin da ke faruwa na iya haɗawa da tiyata ta hanyar wucewa ko angioplasty. A wasu lokuta, hyperbaric oxygen far na iya zama da amfani.