The baby’s foamy stool is likely to be the baby’s cold or the baby’s excessive sugar intake, for this situation, choose breast-fed babies can check whether their diet is normal recently, choose formula-fed babies can change to low lactose or lactose-free formula. I. Characteristics of foamy stools The stools are foamy and have a strong sour odor. If the baby has been normal stools, the sudden appearance of foamy stools may have the following causes: 1, the baby is cold Check whether the baby’s belly button is cold, whether the small feet are cold. Mom should check if her diet is normal recently, too oily, too cold, too sweet, too salty or too greasy diet will act directly on the baby. 2. The baby has consumed too much sugar and the sugar has not been completely digested. Breast-fed babies are related to their mothers eating food with too much sugar, and babies fed formula, the carbohydrates in formula are mainly lactose. Two, baby frothy stool, what should I do? Powdered milk babies: change to low lactose or lactose-free formula. Breastfed babies: Because the baby’s body changes are easily affected by the mother’s diet. First of all, mothers should check if their recent diet is normal. A diet that is too oily, too cold, too sweet, too salty or too greasy will directly affect the baby. The mother should pay attention to her diet and eat less carbohydrate-rich foods, mainly staple foods such as rice flour, noodles and pasta, cookies, etc., as well as potatoes and sweet potatoes, which are also carbohydrate-based foods. As long as the baby’s spirit and appetite are better and growth and weight development are normal. Babies with frothy stools usually do not need medication or to go to the hospital. Only when there is severe diarrhea, take your baby to the hospital as soon as possible.