It is called “diaper dermatitis”. In mild cases, the skin around the anus and buttocks is red, but in severe cases, the skin around the anus is stained, eroded and broken, and parents are very worried because they cry in pain every time they change diapers and wash their butts. Why do babies get red buttocks? The main reason why babies get red buttocks is because the buttocks are not ventilated and breathable, and the diaper change is not timely, resulting in local stimulation by urine and feces, to put it in a slightly professional way, the urea in urine is decomposed by the bacteria in feces, which produces ammonia, and ammonia irritates the skin and makes it inflamed. It is important to emphasize that diaper dermatitis can develop from simple redness of the buttocks to localized erosion due to untimely treatment, and the baby will cry and refuse milk. What should I do if I have a red bottom? 1.Solve the problem of too many bowel movements; 2.Parents should not be lazy and save, diapers should be changed diligently and in time; 3.Visit the doctor in time, do not apply indiscriminately, especially in the case of breakage do not apply ointment containing hormone ingredients, “a certain inflammation flat”, “a certain treasure “is not recommended to use.