What should I do if a 4-month-old baby has diarrhea?

When a 4-month-old baby experiences diarrhea, prompt measures should be taken to treat it and prevent serious complications such as dehydration. When managing diarrhea, ensure the baby's food and feeding utensils are hygienic to minimize the risk of infection. The following steps can also be taken: provide the baby with adequate fluids to replace lost water and electrolytes and prevent dehydration; supplement with probiotics and gut mucosal nutrients to help restore the balance of intestinal microbiota and support the recovery of the intestinal lining. If the diarrhea in a 4-month-old baby is severe, it is advisable to seek medical attention promptly to avoid delaying treatment.