The common causes of red buttocks in babies are stimulation of urine and feces, eczema, allergy and fire. If the baby does not deal with it in time after defecation, the skin of the buttocks will be stimulated repeatedly by urine and stool, and red buttocks will be easily induced. If the baby’s diapers or diapers are not changed in time, the skin of the buttocks will be in a damp state for a long time and eczema will be easily induced. If the baby’s internal heat is too great and the body is in a state of fire, the skin around the anus will become more red. There are many reasons for the baby’s red buttocks, the most common being the stimulation of urine and feces. When a baby has red buttocks it is recommended to use local zinc oxide cream for local application to keep the buttocks clean and dry.