Sign up now for early access to ToddlerData!

Emily Oster, PhD

2 minute read Emily Oster, PhD
author-pic

Emily Oster, PhD

How Bad Is It to Use a Hot Tub While Trying to Conceive?

Q&A on sperm counts

Emily Oster, PhD

2 minute read

How detrimental is it for a male and female couple to sit in a hot tub (likely just once) close to the time they are trying to conceive?

—Kim

For some reason, this brings up a lot of thoughts about sex ed for me. I have memories of two stories from high school. One was that you could get pregnant in a hot tub even if you were not having sex (I guess the idea is the sperm could swim?), and the other is that you couldn’t get pregnant having sex in a hot tub. Actually, neither of those is true. Sperm wouldn’t survive swimming around in the hot tub, but if you have unprotected sex, you could get pregnant.

knape

I digress.

In terms of your question, the worry about hot tub exposure for women is during, not before, pregnancy, with possible risks related to neural tube defects. So, using a hot tub prior to pregnancy would not be a concern. For men, the concern is that heat could kill sperm. If your partner has a low sperm count, it may be good to avoid regular hot tub exposure during the time you are trying to conceive (also, he should wear loose underwear in general). If sperm count isn’t a concern, then this isn’t something to worry about.

Community Guidelines
Slightly melting ice cubes scattered across a bright blue background.

Dec. 23, 2022

2 minute read

Is It Safe to Take Cold Showers and Plunges While TTC?

Hello, I live in Vermont and swim in the river all winter long. The water is about 30/32 degrees Fahrenheit. Read more

Bed with messy sheets, croissant, a laptop and books.

Updated on Apr. 18, 2025

5 minute read

Resources for Trying to Conceive

Trying to conceive can be filled with ups and downs. It can feel like there’s an overwhelming amount of information Read more

A person in therapy

Updated on Apr. 29, 2025

10 minute read

Supporting Your Mental Health While Trying to Conceive

When trying to conceive, taking care of your mental health can slip further and further down the list of priorities. Read more

A person holding her stomach in pain

Updated on May 14, 2025

3 minute read

How Long Should I Wait to Conceive After an Ectopic Pregnancy?

I recently was treated with methotrexate for an ectopic pregnancy and was told I will need to wait three months Read more