Common causes of vomiting and diarrhea, cold hands and feet are cold, acute gastroenteritis and heat stroke. 1. Colds: Colds caused by wind and cold lead to colds, and colds cause fever, which can lead to autonomic nervous system dysfunction, which in turn leads to abnormal digestive system function, and can lead to vomiting and diarrhea and other symptoms. And because the blood vessels in the hands and feet will contract during the fever process to reduce heat dissipation, when the blood supply to the hands and feet is insufficient, the hands and feet will be cold. 2. Acute gastroenteritis: If gastroenteritis occurs acutely due to poor diet, cold drinks and intestinal infections, causing gastrointestinal spasms, patients will have vomiting and diarrhea. The symptoms of vomiting and diarrhea continue to be unrelieved, resulting in a large loss of body water, which will redistribute the blood supply to the body, resulting in a decrease in the amount of peripheral circulating blood, so the patient appears to have cold hands and feet. 3. Heatstroke: If the body’s core body temperature rises too high due to prolonged exposure to high temperatures, a large amount of sweating, the body will experience electrolyte disorders, which can cause vomiting and diarrhea. If caused by a large loss of body water, microcirculation blood volume is insufficient, hands and feet will become cold. If vomiting and diarrhea, cold hands and feet, it is recommended to go to the hospital in time to identify the cause, so as not to delay treatment.