Healthy children who are breastfed usually grow well and rarely develop diarrhea. If there is a significant increase in the number of stools, or if the stools have a significant abnormality such as loose stools, mucus stools, or bloody stools, you should seek immediate medical attention. Don’t forget to bring the baby’s stool for laboratory tests before going to the hospital, preferably within one hour, as this will reflect the condition more accurately. If the child has infectious diarrhea, care should be taken to disinfect the mother’s nipples before breastfeeding. Do not use a dry towel, as this can easily crack the nipple. You can buy a steam sterilizer from a baby store such as Green Baby, Harrow Baby, etc. The plastic ones are not very expensive, about a hundred dollars, and they are convenient and quick to plug in. Then go to the drugstore to buy some gauze, cut into palm size. Then prepare two plastic jars with lids, respectively labeled “clean” and “contaminated”. Fold the gauze into the sterilizer, sterilize it and put it in the clean jar. Before feeding, take a piece of gauze (wet) from the sterilized “clean” jar and sterilize one nipple, then breastfeed and place the gauze in the “contaminated” jar. After the baby has suckled on one side, sterilize the other nipple, place the gauze in the “contaminated” plastic jar, and nurse. If you have more gauze in the “contaminated” jar, you can wash it again with water and put it again in the steam sterilizer you bought, so you can use it again and again without wasting it. This will ensure that your nipples are clean when breastfeeding. If the economy does not allow, you can wash your hands before breastfeeding and then apply some milk to the nipple and its surrounding area before breastfeeding. This is because the milk itself has some antiseptic power. It is normal for children to eat their hands, but they should be careful to wipe their hands clean often. Pay attention to the sterilization of other feeding utensils. Of course, if the diarrhea is significant, it is important to see a doctor and take the medication as prescribed, and in severe cases, infusion therapy is needed. With prompt medical attention, it can usually be cured. In addition, young parents are reminded that they must not be in a hurry. Once diarrheal disease appears, it takes a long time to recover because the human intestine is very long, more than 3 to 4 times the height of a person, and the intestinal mucosa cells need time to repair after damage. It takes 4~6 days at the earliest.