My baby has a red bottom again and the doctor said it’s called diaper dermatitis. Is diaper dermatitis all the fault of the diapers? Diaper dermatitis typically manifests itself as rough, red skin on the diaper area (buttocks, vulva, belly, thigh roots, and other diaper-covered areas) in mild cases. In severe cases, the skin can be raised and small red bumps can appear. In severe cases, skin breakouts and erosions can even occur. Suggestion: The onset of diaper dermatitis is related to stifling, humidity and frictional irritation of the skin in the diaper area. Diapers that are too hard, diapers that are too thick, diapers that are not washed, or diapers that are not up to par can all irritate your baby’s little buttocks and cause an inflammatory skin reaction that can lead to diaper dermatitis. But diaper dermatitis is not all the fault of the diapers themselves, the mother did not change the baby’s diapers in time, or baby diarrhea is also a common cause of diaper dermatitis. If the diaper is not changed in time, it will cause the decomposition of the old urine in the diaper to produce ammonia, which will change the pH of the skin, thus stimulating the inflammatory reaction of the skin. Also untimely diaper changes can make your baby’s little butt stuffy and moist, which can lead to bacterial and fungal infections that can induce or aggravate diaper dermatitis. When a baby has diarrhea, the pH of the stool will also change, which can irritate the baby’s little butt and cause diaper dermatitis. So the key to preventing diaper dermatitis in order to solve your little butt troubles is – to keep your little butt clean and dry. First of all, choose soft, clean and breathable diapers or diapers of qualified quality for your baby. Second, diapers must be changed in a timely manner. 2-4 hours to change a diaper, and the number of diaper changes can be increased in summer or when your baby has diarrhea. After a bowel movement (especially when the baby is diluted), you can’t just wipe it with hand paper, you must wash it with warm water, and don’t forget to apply some buttock cream to protect the skin after washing. If you find that your baby’s buttocks are hairy, you can use 5% tannic acid ointment topically after cleaning (note: when you wipe the medicine, you must rub it with clean hands to help the medicine absorb) 3-4 times a day, generally 7-10 days will be significantly better, if the treatment does not work, you should take your baby to the doctor in time.