The so-called perianal cysts in infants mostly refer to infected perianal abscesses. There are two main causes of perianal abscesses in infants: first, during infancy, the intestinal function of the child is prone to disorders, which can easily lead to diarrhea and repeated defecation, resulting in perianal skin infection and bacterial invasion after perianal skin infection, leading to perianal abscesses, which should be treated as early as possible when encountering perianal abscesses and surgically removed to avoid the formation of anal fistula; second, it is related to the infant’s physique, if the infant’s immunity is low Local abscesses are easily formed and also lead to the occurrence of perianal abscesses, so if there are multiple perianal abscesses, it is recommended to check the immunity index of the child to avoid causing other systemic pathologies.