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Myths About Sex Under Water

Misconceptions About Sex in Jacuzzis, Pools and Hot Tubs


Updated July 19, 2014

Myths about under water sex
Andersen Ross Collection/Digital Vision/Getty Images

1. MYTH - A Woman Cannot Get Pregnant During Water Sex:

Do not be fooled by the widely held misconception that a woman cannot get pregnant if she has sex in the water. The fact is that nothing in water can kill sperm or prevent a pregnancy from happening. Basically, once sperm have been ejaculated into the vagina, their goal is to find an egg to fertilize, and water will not stop this mission. Water will not act as a contraceptive.

2. MYTH - The Higher Temperatures of Hot Tubs and Jacuzzis Help Prevent Pregnancy:

Many people believe that it is safe to have sex in a hot tub or Jacuzzi due to the mistaken belief that the heat in a hot tub kills sperm. Although being in a hot tub for more than 30 minutes may slightly lower sperm count, it does not decrease the number of sperm to a “safe” amount. Even with the lower sperm count, a man can still ejaculate 200 to 500 million healthy sperm, and it only takes one to fertilize an egg.

3. MYTH - You Can Get Pregnant if Swimming in a Pool Where There is Sperm:

This is also a common myth. If a man ejaculates into the water, it is highly unlikely that a woman will get pregnant. There are many explanations as to why women cannot get pregnant just by swimming in a pool where sperm may be present. If ejaculation takes place in hot water (like a hot tub or Jacuzzi), or water filled with pool chemicals, bubbles, chlorine, or other substances, sperm would not be able to survive for more than a few seconds. Also, the water in a pool is too cold for sperm to live. Sperm could last for only a few minutes if a man ejaculates in warm water with no chemicals (like a bath tub).

It is also unlikely that the microscopic sperm could travel through the water of water in a bath tub, pool or Jacuzzi to arrive at a vagina. Finally, if a woman is just sitting in a hot tub or swimming in a pool, her vagina is not “open,” so the sperm have a very low chance of getting in. According to the American Pregnancy Association, “pregnancy occurring from this [ejaculation in the water] is very unlikely and in most cases is not possible at all.”

4. MYTH - You Cannot Catch an STD in the Water:

This is not true. Sexually transmitted infections and HIV can still be spread while having sex in the water, even in hot tubs. This means that it is important to use birth control during water sex that can provide STD protection. Although hormonal methods may protect against pregnancy, they do not provide any defense against STDs. Additionally, having sex in the water could also increase the likelihood of a woman getting a urinary tract infection and/or a yeast infection.

5. MYTH - Condoms Are an Effective Birth Control Method for Water Sex:

Although condoms are effective at preventing pregnancy and STDs, they may be somewhat risky to use during underwater sex. They can possibly rupture from decreased lubrication and possibly deteriorate from heat, chlorine, or oil-based substances in the water (i.e., tanning lotion, sun screen, bubble bath, etc). Plus, there is the added threat that the condom can slip off if water gets into it, and a man may be unaware of this happening.



The American Pregnancy Association. (2007). "Can Pregnancy Occur if…?: Pregnancy Myths Cleared Up!".

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