Anthrax usually grows on the skin surface of the body, in the lungs, intestines, and other locations. The most frequent site of anthrax is the skin, which accounts for about 90 percent of anthrax cases. When cutaneous anthrax develops, it usually occurs on exposed areas such as the face and hands. It begins as a macular and hemorrhagic rash, followed by herpes on day 2, followed by hemorrhagic necrosis in the center of the hemorrhagic lesion, surrounded by clusters of small blisters. On the 5th~7th day, the necrotic area breaks down into an ulcer and gradually forms a charcoal-black black scab, i.e. anthrax carbuncle. The black scabs gradually subside after swelling and fall off in 1~2 weeks. Anthrax is also commonly found in the lungs and is called pulmonary anthrax. In most cases it is caused by inhalation of Bacillus anthracis spores or secondary to cutaneous anthrax. The onset of the disease is relatively rapid and most cases are critically ill, often with sepsis and infectious shock, and occasionally with meningitis. Without prompt diagnosis and resuscitation, patients may die of respiratory and circulatory failure within 24-48 hours of the onset of acute symptoms. In addition to being common on the surface of the skin and in the lungs, anthrax is also common in the intestines. Intestinal anthrax has different clinical signs, including acute gastroenteritis and acute abdomen. The incubation period of the former is 12-18 hours. If left untreated, patients may die of sepsis and septic shock within 3-4 days of onset. When anthrax occurs, it is a serious condition that mostly often appears on the skin surface of the body, lungs, intestines, and other locations. When anthrax occurs, it is important to quickly identify and report the outbreak, demarcate the infected area and implement comprehensive epidemic prevention measures.