According to the clinical manifestations of muscarinic poisoning, it can be divided into the following four types: 1. Gastrointestinal/gastroenteritis type: nausea, vomiting, abdominal pain, severe diarrhea and other symptoms after poisoning, or even gastrointestinal hemorrhage, shock and other symptoms; 2. Psychoneurological type: sweating, pupil constriction and other parasympathetic excitatory symptoms after poisoning, and in severe cases, delirium, restlessness, convulsions, or even coma and other manifestations; 3, Hemolytic type: in addition to gastrointestinal symptoms, patients will also appear hemolytic anemia, jaundice, hemoglobinuria and other symptoms, severe cases can appear acute renal failure, some cases can appear thrombocytopenia, skin purpura, and even gastrointestinal hemorrhage and other symptoms; 4. Toxic hepatitis type: the most obvious symptom is liver damage, and the patients will have pain in the liver area, liver and spleen enlargement, transaminase elevation, jaundice. This type is easy to combine with hepatic encephalopathy and various bleeding manifestations, and even liver and kidney failure.