June 27, 2023/Children's Health

Bubble Trouble: Vaginal Irritation From Soap in Kids

If you have a vagina, bubble baths aren’t a good idea at any age

little girl in bubble bath

Bath time can be lots of fun for your wee one, and a great way to soothe them and get them ready for bed. But — if you have a child assigned female at birth (AFAB) — exposure to soap and bubbles can also hurt their privates, leaving them itchy and uncomfortable.

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But there’s good news: Knowing how to properly bathe your child can help minimize the risks of vaginal irritation and keep bath time fun.

So, grab your rubber duckie! We’re doing a deep dive on bubble baths. Our guide, pediatrician and adolescent medicine specialist Tornia Wyllie, MD, explains why bubble baths aren’t a great idea for women at any age — but especially for babies, toddlers and young children.

Can bubble bath cause UTIs?

While it’s not the most common cause of genital irritation in kids, it’s true that bubble baths can cause urinary tract infections (UTIs). Most of the time, UTIs are bacterial in nature. You can get a UTI in any part of your urinary tract: your urethra, your bladder, your kidneys or your ureters.

While it’s more common in little girls, little boys can also develop UTIs. Boys are most vulnerable to UTIs in the first few months of their lives — or if they’re uncircumcised.

A UTI can cause a wide range of symptoms, among them:

  • Pain or bleeding when you pee.
  • Frequent peeing, frequent urges to pee or incontinence.
  • Cloudy pee.
  • Pain or pressure in the pelvis, lower back, penis or flank.
  • Fatigue.
  • Chills and fever.
  • Nausea and vomiting.

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A urinary tract infection is a serious condition that needs to be treated immediately. But it’s also not the most common cause of genital irritation. In fact, it only affects 1% to 2% of children. Especially for young girls, soap vulvitis is typically going to be the cause of your kiddo’s discomfort.

Symptoms of soap vulvitis

While your child could develop a UTI due to irritation from a bubble bath, it’s more often the case that they’re experiencing soap vulvitis: An irritation of the vagina caused by soap exposure. The most common symptoms of soap vulvitis are:

  • Itching or burning sensation.
  • Redness, heat and swelling of the vulva, particularly the labia.

Soap vulvitis is the most common cause of these symptoms in babies, toddlers and young children. But there are plenty of other reasons a child might be experiencing vulvar irritation, too.

A ’diagnosis of exclusion’

Dr. Wyllie describes soap vulvitis as “a diagnosis of exclusion.” In other words, your child’s healthcare provider needs to first rule out other possible causes of vaginal irritation.

“For example,” Dr. Wyllie says, “in toddlers, you ask if the itching is because they have a pinworm infection? Is it coming from the detergent you’re using on their underwear? Is it a hygiene problem? Or is it related to the child having a bubble bath?”

One quick way to determine if your child has soap vulvitis is to stop giving them bubble baths. “If, in the next two days, once you get to your primary care doctor, things are better, then you’ve isolated the reason for the irritation,” Dr. Wyllie notes.

How to take care of a child with soap vulvitis

If you’re kiddo’s feeling miserable, Dr. Wyllie recommends using a cool compress on the red, swollen areas of their vulva. She likewise suggests using an emollient cream to calm the skin and reduce the itching. Cool air from a blow dryer can also soothe an irritated area.

You can also treat soap vaginitis with baking soda and warm water soaks. Dissolve 4 tablespoons of baking soda in a bathtub full of warm water. The baking soda will help get any stubborn soap, urine or other irritants off of your little one’s genitals, which will speed up the healing process. Let your child soak in the tub for 10 minutes twice a day for two days — and follow up with a humectant to seal in the moisture and prevent itching.

How to prevent vaginal irritation from soap

Dr. Wyllie says doing the following things during bath time can reduce your child’s risk of developing soap vulvitis:

  • Babies, toddlers and children under 6 don’t necessarily need baths every day. Plan to bathe your child two to three times a week. You can always add an additional tub session into the schedule if they have a particularly gnarly diaper situation.
  • Keep baths between 10 and 15 minutes long.
  • Make sure the water is the right temperature and free of bubble bath, bars or soap, or other possible irritants.
  • Use washcloths only: No loofahs, sponges, shower towels or mesh poufs. And make sure you’re washing the washcloth regularly!
  • Use only warm water to wash your child’s genitals. For the rest of their body, stick with a gentle, fragrance-free soap.
  • Wait until the bath is over and your kiddo is standing up to shampoo and condition their hair.
  • If you feel compelled to have your child experience the joy of a bubble bath, try using baby shampoo, which is gentler on both eyes and sensitive private parts.

General tips for preventing vaginal irritation

Bubble bath isn’t the only thing that can cause your little one to experience vaginal irritation. Dr. Wyllie also recommends doing the following for your kiddo:

  • Make sure your kiddo’s wiping front to back.
  • Dress them in breathable cotton underwear.
  • Skip the fabric softener when you’re washing their underwear or swimsuits.
  • Don’t have them wear underwear at bedtime.
  • Have them sleep in nightgowns instead of sleepers or pajama pants.
  • Change them out of bathing suits as soon as possible after swimming, and always bathe them on pool days.
  • Help them stay hydrated throughout the day — concentrated urine can be irritating.

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When to talk to the pediatrician

Dr. Wyllie’s personal threshold for deciding when it’s time for a child to see their pediatrician about vaginal irritation is simple: “If you’re worried enough to Google it, you’re worried enough to contact your doctor.”

You should also contact your child’s healthcare provider if:

  • You notice a “fishy” odor.
  • You observe vaginal discharge or bleeding.
  • Your child refuses to pee because it hurts.
  • Your child is peeing a lot or — if they’re potty-trained — is having accidents.
  • Home remedies aren’t alleviating your little one’s symptoms.
  • Your child has a fever, is nauseated or vomiting, or is reporting pain in their back, flanks or pelvic area.

These symptoms could indicate a vaginal condition like a UTI, bacterial vaginosis or a yeast infection, all of which require medication.

At what age can you use bubble bath?

So, when is it safe to start giving your child bubble baths?

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It depends on who you ask.

Shower and bath products are a multibillion-dollar industry, so you’ll see a lot of products on the shelf that claim to be safe and non-irritating at any age. You’ll also see websites claim that it’s safe to use bath products after puberty because the lining of the vulva becomes thicker and less sensitive.

But if you ask Dr. Wyllie, it’s never a good idea to use bubble bath — even as an adult.

It’s true that the vaginal environment changes with age, but that doesn’t mean it develops an immunity to chemicals in bath water. It does mean that the symptoms (and possibly even the diagnosis) will shift. Instead of soap vulvitis, for example, an adult may develop a UTI from their bath products.

Dr. Wyllie suggests avoiding bath products at any age. If you do opt to run a bubble bath or drop a bath bomb in the tub with you, though, it’s important to make sure you know what you’re putting in your water. Products that are “formulated for sensitive skin,” “hypoallergenic” or “natural” can still irritate your vulva and throw off the delicate ecosystem inside your vagina.

Takeaway

Bubble baths can be lots of fun, but that doesn’t mean they’re good for you. In babies, children and small toddlers, those suds can cause irritation (soap vulvitis in girls) or even a urinary tract infection.

While the vaginal ecosystem changes with age, girls and women don’t “grow out of” a sensitivity to soap. Rather, the kinds of complications bubble bath and other bath products cause changes. That’s why it’s not a good idea for anyone to use bubble bath, adults included.

If you notice that your child’s vulva looks different than usual — for example, if it’s red or the skin appears to be breaking down — take them to their healthcare provider. They can help you determine what’s causing the irritation, treat it and provide tips to prevent it from happening again.

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