Can Pee Cause Diaper Rash?

  • By: Julie Miller
  • Time to read: 7 min.

It’s no secret that newborn babies need to be changed often – especially when they are wearing diapers. But did you know that there is a link between urine and diaper rash?

Exposure to urine and stool for a long time can make a baby’s skin irritated and can lead to diaper rash.

In this blog post, we will explain how pee can cause diaper rash and some tips on how to prevent this common skin irritation.

Why Does Urine Cause Diaper Rash?

Why Does Urine Cause Diaper Rash?

Urine is a natural byproduct of the body and is composed of water, salts, and waste products. Skin contact with urine through wet diapers can cause irritation and lead to diaper rash.

Urine contains ammonia, which is a harsh chemical that can strip away the natural oils from the skin. This can leave the skin dry, red, and inflamed.

Additionally, urine is naturally acidic, and when it comes into contact with the skin, it can change the pH of the skin. This can cause irritation and skin infection, which can then lead to diaper rash.

Urine can also contain bacteria that can cause infection. It is normally sterile, but it can become contaminated with bacteria. When this happens, the bacteria can cause a diaper rash.

The most common type of bacteria that causes diaper rash is Staphylococcus aureus. This bacterium is usually found on the skin or on the nose. It can also be found in food and in the environment. When it gets into the urine, it can cause an infection.

The symptoms of a diaper rash caused by bacteria include redness, swelling, and pus. The rash can also be painful. If you think your child has a bacterial diaper rash, you should take them to see a doctor. They will likely prescribe antibiotics to treat the rash.

Diaper rash is most commonly seen in babies and young children because their skin is more sensitive than adults.

What Causes Babies to Have Acidic Urine?

There are a few things that can cause babies to have acidic urine. One is diet. If a baby is formula-fed, the formula can cause their urine to be more acidic.

Acidic foods in your baby’s diet can also make a baby’s urine more acidic. This can happen when the food is metabolized and produces acids that are excreted in the urine.

Acidic foods can also directly increase the acidity of urine. Some examples of acidic foods include citrus fruits, tomatoes, and vinegar. Babies who consume too many acidic foods may be at risk for developing urinary tract infections.

To prevent this, it is important to feed your baby a variety of foods from all food groups. This will help ensure that they are getting the nutrients they need while also limiting their exposure to acidic foods.

Another thing that can cause acidic urine is dehydration. When babies are dehydrated, their bodies produce less urine. This concentrated urine is more likely to be acidic.

If you think your baby’s urine is too acidic, talk to your pediatrician. They can test the pH of your baby’s urine and make sure that everything is okay. Sometimes, babies with acidic urine need to be treated with special medications. However, in most cases, simply changing the diet or increasing fluids will help to fix the problem.

Does Pee Burn Diaper Rash?

Does Pee Burn Diaper Rash?

The answer is yes, urine can worsen diaper rashes. Urine is a natural irritant, and when it comes into contact with the already sensitive skin of a baby with diaper rash, it can cause further irritation.

If your baby has severe diaper rashes, you may need to consult their doctor for treatment options.

How Much Urine Is Normal for a Baby?

A baby’s bladder is very small and can only hold a limited amount of urine. This means that babies will need to urinate frequently, usually every one to three hours. While it may seem like a lot, this is actually quite normal for infants.

Of course, there are always exceptions and some babies may urinate more or less often than others.

How Do You Get Rid of Diaper Rash Fast?

If your child develops diaper rash from urine, there’s no need to panic. Most diaper rashes are not serious and will go away with home treatment.

There are a few things you can do to get rid of your baby’s diaper rash fast.

Here are some tips on how to prevent and treat diaper rash fast:

Change Diapers Often

According to the American Academy of Pediatrics, frequent diaper changes are the most important thing you can do to prevent and treat a baby’s diaper rash. Whether you use cloth diapers or disposable diapers, it’s important to change them frequently. This helps to keep your baby’s skin clean and dry and prevents irritation.

If your baby has frequent bowel movements or pees every hour, try changing their disposable diapers more often.

Prolonged exposure to wet or dirty diapers can also lead to irritant diaper rash or irritant dermatitis. Additionally, wetness and moisture from a soiled diaper can create a moist environment for bacteria and yeast. This is why it is important to change diapers often.

Diaper Rash Treatment Cream

There are a few different ways that a diaper rash cream can help to soothe and heal inflamed skin. The first way is by providing a barrier between the skin in the diaper area and urine or feces. This can help to prevent further irritation of the skin creases and the diaper area.

Another way that a diaper rash cream or barrier ointment can help is by moisturizing the skin around the diaper area. This can help to speed up the healing process and treat symptoms of diaper rash.

Finally, some diaper rash creams contain ingredients that can help to soothe and heal the skin, preventing diaper rash from becoming worse. This can include ingredients like zinc oxide.

Applying a diaper rash cream, protective ointment or even petroleum jelly with every diaper change is one of the best ways to prevent and treat diaper dermatitis.

Avoid Baby or Diaper Wipes

When you use baby wipes, you are actually rubbing chemicals onto your baby’s skin. Some of these chemicals can cause skin irritation and diaper dermatitis, especially for babies with skin sensitivity. The most common culprits are methylisothiazolinone, artificial fragrances, and alcohol.

If you’re using wipes that contain fragrances, switch to an alcohol-free and fragrance-free product.

You may also want to try using a soft cloth, very mild soap, and warm water instead of baby wipes. Pat your baby’s bottom and skin gently with a wet cloth or air dry before putting on fresh diapers. It is just as effective at cleaning up messes, and it doesn’t irritate the skin.

Cloth Diapers

Using cloth diapers comes with a whole host of benefits for both you and your baby. However, one potential downside is that they can cause diaper dermatitis or make diaper rash worse. Here are a few tips to help prevent diaper rash when using cloth diapers:

  • Avoid plastic pants. Plastic pants can trap moisture against your baby’s skin, which can lead to irritation and a child’s rash on the skin covered by the diaper.
  • Avoid using fabric softener and dryer sheets. These products can leave a residue on your diapers that can irritate the skin. Use mild detergent or hypoallergenic laundry detergent instead.
  • Make sure to wash your diapers regularly. Diapers that are not washed frequently enough can build up bacteria and yeast, which can cause diaper dermatitis.
  • Wash diapers in warm water. Read our full guide to washing cloth diapers.


Believe it or not, your baby’s pee can cause diaper rash or diaper dermatitis. In fact, diaper rash occurs due to acidic urine that can irritate skin. If you’re seeing a rash form in your little one’s diaper area, take a closer look at what they’ve been eating and drinking.

There are many different creams and ointments available to help soothe irritated skin, and with a bit of patience and perseverance, you should be able to clear up the rash in no time.

However, severe rashes and open sores need proper treatment. This means you will have to consult your child’s healthcare provider or doctor for advice.


What Can Be Mistaken for Diaper Rash?

There are a few different skin conditions that can be mistaken for diaper rash. These include seborrheic dermatitis, atopic dermatitis, yeast infections, impetigo, allergic reaction, and psoriasis. Each of these conditions has its own set of symptoms that can help you to distinguish it from diaper rash.

How Do I Know if the Diaper Rash Is Yeast?

Diaper rash caused by yeast is different than the one caused by a bacterial infection.

Bacterial diaper rash is usually bright red skin whereas if you notice a deep red or purple raised patch of skin, bumps, or pus-filled sores on the skin folds and beyond the diaper area, it is likely that your baby has a yeast diaper rash caused by a yeast infection. Other symptoms may include itching, burning, or pain.

An antibiotic ointment doesn’t work against a yeast infection. If the rash appears to be caused by a candida infection, call the doctor right away for prescription medication.

Left untreated, yeast infections can lead to serious health complications.

Cloth Diapers x
Cloth Diapers