Diaper rash is a common form of inflamed skin (dermatitis) that appears as a patchwork of bright red skin on your baby's bottom.
Diaper rash is often related to wet or infrequently changed diapers, skin sensitivity, and chafing. It usually affects babies, though anyone who wears a diaper regularly can develop the condition.
Diaper rash can alarm parents and annoy babies. But it usually clears up with simple at-home treatments, such as air drying, more frequent diaper changes and ointment.
Diaper rash is characterized by the following:
- Skin signs. Diaper rash is marked by red, tender-looking skin in the diaper region — buttocks, thighs and genitals.
- Changes in your baby's disposition. You may notice your baby seems more uncomfortable than usual, especially during diaper changes. A baby with a diaper rash often fusses or cries when the diaper area is washed or touched.
When to see a doctor
If your baby's skin doesn't improve after a few days of home treatment, talk with your doctor. Sometimes, you'll need a prescription medication to treat diaper rash.
Have your child examined if the rash:
- Is severe or unusual
- Gets worse despite home treatment
- Bleeds, itches or oozes
- Causes burning or pain with urination or a bowel movement
- Is accompanied by a fever
Diaper rash can be traced to a number of sources, including:
- Irritation from stool and urine. Prolonged exposure to urine or stool can irritate a baby's sensitive skin. Your baby may be more prone to diaper rash if he or she is experiencing frequent bowel movements or diarrhea because feces are more irritating than urine.
- Chafing or rubbing. Tightfitting diapers or clothing that rubs against the skin can lead to a rash.
- Irritation from a new product. Your baby's skin may react to baby wipes, a new brand of disposable diapers, or a detergent, bleach or fabric softener used to launder cloth diapers. Other substances that can add to the problem include ingredients found in some baby lotions, powders and oils.
- Bacterial or yeast (fungal) infection. What begins as a simple skin infection may spread to the surrounding region. The area covered by a diaper — buttocks, thighs and genitals — is especially vulnerable because it's warm and moist, making a perfect breeding ground for bacteria and yeast. These rashes can be found within the creases of the skin, and there may be red dots scattered around the creases.
- Introduction of new foods. As babies start to eat solid foods, the content of their stool changes. This increases the likelihood of diaper rash. Changes in your baby's diet can also increase the frequency of stools, which can lead to diaper rash. If your baby is breast-fed, he or she may develop diaper rash in response to something the mother has eaten.
- Sensitive skin. Babies with skin conditions, such as atopic dermatitis or seborrheic dermatitis (eczema), may be more likely to develop diaper rash. However, the irritated skin of atopic dermatitis and eczema primarily affects areas other than the diaper area.
- Use of antibiotics. Antibiotics kill bacteria — the good kinds as well as the bad. When a baby takes antibiotics, bacteria that keep yeast growth in check may be depleted, resulting in diaper rash due to yeast infection. Antibiotic use also increases the risk of diarrhea. Breast-fed babies whose mothers take antibiotics are also at increased risk of diaper rash.
The best way to prevent diaper rash is to keep the diaper area clean and dry. A few simple strategies can help decrease the likelihood of diaper rash developing on your baby's skin.
- Change diapers often. Remove wet or dirty diapers promptly. If your child is in child care, ask staff members to do the same.
- Rinse your baby's bottom with warm water as part of each diaper change. You can use a sink, tub or water bottle for this purpose. Moist washcloths, cotton balls and baby wipes can aid in cleaning the skin, but be gentle. Don't use wipes with alcohol or fragrance. If you wish to use soap, select a mild, fragrance-free type.
- Gently pat the skin dry with a clean towel or let it air dry. Don't scrub your baby's bottom. Scrubbing can further irritate the skin.
- Don't overtighten diapers. Tight diapers prevent airflow into the diaper region, which sets up a moist environment favorable to diaper rashes. Tight diapers can also cause chafing at the waist or thighs.
- Give your baby's bottom more time without a diaper. When possible, let your baby go without a diaper. Exposing skin to air is a natural and gentle way to let it dry. To avoid messy accidents, try laying your baby on a large towel and engage in some playtime while he or she is bare-bottomed.
- Consider using ointment regularly. If your baby gets rashes often, apply a barrier ointment during each diaper change to prevent skin irritation. Petroleum jelly and zinc oxide are the time-proven ingredients in many diaper ointments.
- After changing diapers, wash your hands well. Hand-washing can prevent the spread of bacteria or yeast to other parts of your baby's body, to you or to other children.
In the past, it was common to use powders, such as cornstarch or talcum powder, to protect a baby's skin and absorb excess moisture. Doctors no longer recommend this. Inhaled powder can irritate a baby's lungs.