There are the following reasons for the child’s frothy stool: First, the fermentation of the food consumed within the gastrointestinal tract, the discharge of the stool may have symptoms of foam, but it is not caused by viral or bacterial infection, and the child will not have diarrhea, crying or abdominal distension, so there is no need to give intervention. Second, viral infections cause viral enteritis, such as common rotavirus enteritis, the child’s diarrhea may have foamy stools, should be given according to the virus causing the symptoms of the application of antiviral medication, while giving antidiarrheal drugs for treatment, the child’s foamy stools can be cured. The child may have mucus-purulent stools or frothy stools, which require anti-inflammatory treatment with cephalosporin or penicillin antibiotics and antidiarrheal treatment. When the child’s abdomen is cold, causing abdominal distension and other poor digestion, there will also be foamy stools, pay attention to abdominal warmth, and at the same time to adjust the gastrointestinal flora, oral medication to promote gastrointestinal digestion, such as lactobacillus granules or Mamie’s love and other drugs to adjust.