One year old babies have started to grow gradually and their intestinal system is slowly starting to adapt. The main causes of diarrhea at this time are catching cold, complication of supplementary food addition, cold, bacterial or viral infection. When a baby has diarrhea what must be done is to prevent dehydration, the baby’s body will lose water because of diarrhea, dehydrated babies are prone to dizziness and fever, so mothers must replenish water for their babies, you can use oral salt. The next thing is to stop the diarrhea, if the diarrhea is not serious, you can continue breastfeeding, if the diarrhea is serious then shorten the breastfeeding time, you can eat some apple puree, rice soup, or you can fast first and drink more sugar and salt water. You should also pay attention to keeping your baby warm, massage and hot compresses on the stomach are good for diarrhea, and bubble your feet with warm water. You can take medicine to stop diarrhea with Similac and probiotics to regulate the gastrointestinal flora, which are effective for baby diarrhea and have no side effects. If your baby has diarrhea, mothers should learn to determine whether it is serious, serious to go to the hospital, if necessary, infusion treatment, if not very serious, their own home care and conditioning can be cured.