Elderly people drink water after the dilute stool may be drinking cold water or acute gastroenteritis caused by. The elderly themselves gastrointestinal function is relatively weak, usually try to drink warm water or hot water, if you drink cold water, may cause some stimulation of the gastrointestinal mucosa, resulting in faster intestinal peristalsis, thus the phenomenon of loose stools. It is also possible that the elderly drink water unhygienic, such as drinking raw water or contaminated water, leading to viruses, bacteria and other microbial infections, thus causing acute gastroenteritis, which will appear diarrhea, nausea, vomiting and other symptoms. Elderly people should pay attention to the observation of dilute stool after drinking water, if the symptoms continue to be unrelieved, you need to go to the hospital in a timely manner, to identify the cause of targeted treatment.