sentence: Internal gangrene affects the internal organs usually the intestines, gallbladder or appendix.
sentences_before: Dry gangrene is usually caused by a loss of blood supply to the affected area, such as may happen following an injury which damages the blood vessels to the affected area. Wet gangrene usually occurs when a wound becomes infected with various types of bacteria. Gas gangrene is usually  caused by 'clostridium' bacteria and mainly affects the muscles.
concept_name: internal gangrene
headings: Gangrene
categories: Symptoms Medical signs