Cholera patients do not necessarily vomit, and the course of typical cases is divided into diarrhea, dehydration and recovery. Clinical manifestations of severe diarrhea can be accompanied by vomiting and dehydration. 1. Diarrhea and vomiting period: often manifested as diarrhea and vomiting. Diarrhea is the first symptom, painless severe diarrhea, not accompanied by acute and severe (discomfort in the lower abdomen, wanting to relieve stools, and a feeling of incomplete defecation after defecation). Vomiting is projectile vomiting, or no vomiting in mild cases. 2. Dehydration: Frequent diarrhea leads to massive loss of water and electrolytes, internal environmental disorders, and even circulatory failure. It can be manifested as dehydration, muscle cramps, hypokalemia, etc. 3. Recovery period: diarrhea stops, dehydration is corrected after most patients symptoms disappear and gradually recover. In addition, there is a kind of rare cholera, the onset of the disease is acute, without vomiting and diarrhea symptoms, it will rapidly appear toxic shock and death. If you are suffering from cholera, you should be admitted to the hospital and treated under the guidance of a doctor.