1. Causes of Diarrhea There are many causes of diarrhea in babies, the most common of which is infectious diarrhea. It may also be caused by abnormal gastrointestinal function and diarrhea due to problems such as food incompatibility, overfeeding or excessive drinking. Since diarrhea will cause the baby to become dehydrated and lose a large amount of electrolytes and nutrients, in order to avoid the serious consequences of diarrhea, parents should take measures to solve the baby\’s diarrhea problem as quickly as possible. 2. Methods to quickly stop diarrhea. First, let the baby eat light food as much as possible and drink more boiled water, rice soup or light salt water. Secondly, antidiarrheal drugs should be used with caution and under the guidance of a pediatrician.