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Children in Hot Tubs

Especially for children under 5 years old, with bodies still growing, a hot tub could be unhealthy or possibly dangerous.

Let's take a look to see what health experts have to say about children in hot tubs.

  • CDC says: "Exclude children less than 5 years of age from using hot tubs."
  • Mayo Clinic says: "Young children can quickly become overheated in a hot tub or spa."
  • CPSC says: "Hot tubs pose a drowning risk to children and an overheating risk for young children."

The Problems with Children in Hot Tubs

The first problem with children using hot tubs involves their ability to regulate temperature and the possibility for hyperthermia, or overheating very quickly, in a spa that is heated to over 100°.

The second issue with kids in a hot tub are concerns of bacterial infection, by absorbing pathogens through the skin, ears, eye, mouth and airways.

And third, the most important reason - is that unsupervised access by children under 5 has resulted in hundreds of drowning incidents by children under 5 years old.

High temperatures: 

high temperatures in the hot tub are not safe for children

Young children typically have small bodies with thin skin. They absorb heat much more rapidly than adults, and can become overheated in just minutes in a spa at 104°F, which can lead to dizziness, nausea or even unconsciousness. Children under the age of five heat up four times faster than adults, and also struggle to breathe the very hot and humid (steamy) air coming off of the water. Children older than five should limit exposure to hot water, both by reducing spa temperatures to 100° or less, and limiting soaking time to under 10 minutes.

Exposure to bacteria: 

germs in hot tub water

In a public spa or hot tub, you never know if the water is sanitary, and if the spa is heavily used - it's probably not. My advice is to never allow children to use a public spa, where they can be exposed to mycobacteria and pseudomonas or the parasite cryptosporidium. Skin infections, ear infections, or even respiratory infections are possible with adults and children, but children are more susceptible to attack.

In a private hot tub or spa - assuming that your spa is not overused and is carefully maintained, and everyone showers fully before using the hot tub - the risk of bacteria exposure may be less. However, sickness can still occur if too many people are in the spa, or if the child stays in too long, or goes underwater, allowing exposure through the nose, ear, eyes and mouth. Using the air blower in a spa can produce more aerosol bacteria, released as the bubbles reach the surface.

Drowning or near drowning: 

Enforce water safety rules when children are in the hot tub

A spa or hot tub should always be secured by a locking spa cover, which will make it unlikely that a young child can gain access. Children older than five, working as a team, can manage to remove a spa cover. A hot tub in the home or backyard can be every bit as dangerous as a swimming pool, and should be regarded as such. Drowning can occur from a bump on the head, overheating or from becoming entrapped or suctioned to the spa drain outlet. Teach your children to never use a spa or hot tub without constant adult supervision.

If You MUST Allow Your Children in a Hot Tub...

The hard part is - kids LOVE hot tubs, and it's a magnet for them. They are drawn to it because it's close to their size, like a mini-pool, and for kids like mine, if you don't let them do it while you are watching, they're going to do it while you are not watching. If you really want to allow children older than 5 to use your private / home hot tub, here are some sensible rules to make it safer.

  1. Everyone shower before using spa
  2. Turn down temperature below 100°
  3. Limit soaking time to under 10 minutes
  4. Keep heads above water at all times
  5. No more than 3-4 kids at a time
  6. Constant adult spa-side supervision
  7. Have warm towels and cool drinks ready

Recommended Products

Leslie's Spa Maintenance Kit

Spa Chemicals

inflatable hot tub

Inflatable Spas

hot tub cover

Custom Covers



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Leslie’s makes every effort to provide accurate recommendations based upon current ANSI/APSP/ICC-5 2011 (R2022) standards, but codes and regulations change, and Leslie’s assumes no liability for any omissions or errors in this article or the outcome of any project. You must always exercise reasonable caution, carefully read the label on all products, follow all product directions, follow any current codes and regulations that may apply, and consult with a licensed professional if in doubt about any procedures. Leslie’s assumes no legal responsibility for your reliance or interpretation of the data contained herein, and makes no representations or warranties of any kind concerning the quality, safety, or suitability of the information, whether express or implied, including, without limitation, any implied warranties of merchantability or fitness for a particular purpose.