Diarrhea is often caused by dehydration, electrolyte disorders, and a decrease in effective blood circulation. Diarrhea will cause the body to lose a large amount of water and electrolytes, causing dehydration, electrolyte disorders and effective blood circulation volume decreased, thus appearing the symptoms of generalized weakness and cold. If the diarrhea time is longer, too many times, the symptoms are more serious, can cause more water and electrolyte loss, which leads to dehydration and electrolyte disorders, can appear hypokalemia, and then a series of symptoms of dehydration and electrolyte disorders, such as generalized aching and weakness, water loss can lead to a decrease in the total body’s effective blood circulation capacity, and fear of cold. Diarrhea needs to find the cause as soon as possible in order to stop diarrhea in time, it is recommended to go to the regular hospital in time for relevant examinations, to clarify the cause of the disease, and standardized treatment under the guidance of the doctor, so as not to delay the condition.