Probiotic enema is to deliver probiotics to the intestinal tract so as to enhance immunity, improve symptoms of lactose intolerance, improve constipation or diarrhea and so on. 1. Improve immunity: intestinal probiotics can regulate the balance of intestinal flora to enhance the level of antioxidants and inhibit the occurrence of inflammation; peptidoglycan and other peptides contained in probiotics can be used as antigens to directly improve the body’s immunity. 2. Improve lactose intolerance: Lactobacillus in probiotics can break down lactose and improve the symptoms of lactose intolerance. 3. Improve constipation and diarrhea: probiotics can promote digestion and absorption of food, promote intestinal peristalsis and improve constipation. Probiotics by regulating intestinal flora imbalance, supplementation of exogenous beneficial bacteria, is conducive to promoting the growth of normal flora, inhibit the growth of pathogenic bacteria or conditionally pathogenic bacteria, adjust the micro-ecological imbalance, thereby alleviating diarrhea. Probiotics use adverse reactions and contraindications are not clear, but enema should pay attention to prevent local skin damage, enema need to be carried out under the guidance of a doctor, to avoid self-medication, delayed condition.