Children two years old, complaining of pain in the buttocks, must distinguish between daytime and nighttime, the specific circumstances are as follows: 1, stool abnormalities: daytime pain in the buttocks is often related to the stool, either hard stool, or stool is very thin, produced by perianal dermatitis, the examination can be seen around the anus skin redness, and even some small fissures, need to be based on the symptoms of the symptoms of the disease, such as constipation needs to be adjusted for the child’s bowel movements, the need for the use of Probiotics, or need to drink carrot juice, it is recommended with pediatric seven star tea granules to soften the stool, stool softening, buttock pain can generally be relieved. 2, pinworms: children have been complaining of buttock itching before going to bed at night, most of the pinworms, you need to consult a pediatrician, the doctor gave piperazine phosphate Baotou sugar for deworming treatment, and at the same time, prescribe a disinfectant potassium permanganate solution, before bedtime, sit bath, treatment will be better. Sitz bath, the treatment will be more effective.