Diarrhea accompanied by mucus is mainly caused by enteritis and requires antibiotic treatment. Many people have diarrhea because of infection in the digestive tract. When the digestive tract is infected, it will cause irritation to the intestines and even damage to the intestinal mucosa, and when the intestinal mucosa is irritated and damaged, it will secrete a mucus for self-protection, so that the stool can be discharged more easily. The mucus will be attached to the stool and discharged from the body, so many people will find mucus while having diarrhea. People with diarrhea with mucus can have a routine stool test to identify the causative agent of the infection and choose a sensitive antibiotic for treatment. For patients with more severe diarrhea symptoms, antidiarrheal treatment with montelukast can be used.