Perianal abscess is a common infectious disease in newborns and small infants, occurring mostly within the first 3 months of life, more often in boys, and more often in children who are breastfed and have breast milk diarrhea, and many patients suffer from prolonged and recurrent attacks; currently, it is believed that many of these children are combined with anal fistulas. In the acute stage of treatment, local care (keep the local clean and dry, try not to use diapers, and keep the local exposure), treatment of diarrhea, such as no other symptoms of infection, it is recommended not to take oral or intravenous application of antibiotics, so as not to aggravate the diarrhea; can warm water sitz bath, can add a small amount of potassium permanganate, or Chinese medicine sitz bath; local nodules are hard can be used topical Baidoban and other local anti-inflammatory, such as local fluctuations, indicating abscess Recently, many children with immune abnormalities have had perianal abscesses as newborns or infants, so it is recommended to exclude immune system diseases in children with persistent perianal abscesses.