Baby diarrhea can not eat tomatoes, because in diarrhea gastrointestinal function is relatively low, can not fully digest and decompose the dietary fiber contained in tomatoes, but will speed up intestinal peristalsis caused by the aggravation of diarrhea symptoms. So when you have diarrhea, it is recommended to eat less fruits and vegetables containing dietary fiber, and choose light, liquid, easily digestible food, such as thin rice, noodles, steamed buns, etc. Dairy products should not be eaten in excess. At the same time with probiotics to regulate the gastrointestinal function, appropriate oral rehydration salt to prevent the occurrence of dehydration symptoms, if there is little urine, poor skin elasticity symptoms need to promptly seek medical treatment.