Mucus in the baby’s stool is mainly due to an increase in mucus secretion in the intestinal tract. It is usually caused by increased intestinal secretion due to indigestion caused by cold or improper diet structure, and may also be caused by intestinal infection. It is recommended to have a stool test to confirm the diagnosis. If it is indigestion, we should strengthen the care, pay attention to keep warm, do not get cold, and eat less cold, greasy, and indigestible food. Babies should pay attention to reduce supplementary food or reduce the amount of milk, can increase the number of feedings, a small number of meals. If the baby is breastfed, the mother should also pay attention to eat less raw, cold, greasy, and not easily digested food. In addition, you can also take drugs to improve digestion, such as probiotics or Chinese medicine to improve digestion. The specific medication plan and treatment method will depend on the age of the child and the specific situation. If there is an intestinal infection, anti-infection treatment should be administered promptly.