The skin of newborns is delicate and undergoes a drastic environmental change from the amniotic fluid in the mother’s womb to exposure to the outside air after birth, so it is susceptible to varying degrees of injury, especially redness of the skin at the anus. The anus is in the perineal area, which is a relatively hidden place and is proverbially not ventilated. Newborn baby stools are generally thin, water, and the number of stools per day, the anus is the passage of stool. So every time you defecate stool will stimulate the anus, if you do not change diapers and diapers in time after even urinating, often leading to perianal skin redness, or even skin rashes, rashes, serious will extend to the skin around the anus, leading to the formation of red buttocks. Then there is the use of substandard diapers or diapers, or the use of wipes containing alcohol and other irritating wet wipes to wipe the buttocks, resulting in anal skin allergies, will also appear red skin phenomenon. Therefore, the skin care of newborn babies is no small matter, use cotton diapers or diapers of qualified quality, change them in time after urination and defecation, and wash the buttocks with warm water after defecation to keep the perianal skin dry and clean, which is conducive to the healthy growth of babies.