Why tight clothing can affect your fertility 2026

When it comes to fertility, and conceiving a child, it is essential to take into account all those factors that, directly or indirectly, can influence when increasing or decreasing the possibilities. Especially when we are in the process of trying to get pregnant, there are different elements that have a negative effect.

In most cases, according to statistics, it is common that when there is a fertility problem, the problem itself affects both men and women, which is why it is said that 50 percent of the causes are shared. And, according to these same statistics, infertility affects approximately 1 in 6 couples.

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For about half of these couples, experts say low sperm count is usually one of the most common causes. And, considering the possible causes that can cause this problem to appear, it seems that something as simple as changing the type of underwear a man uses can simply end up making a difference.

How wearing tight clothing affects male fertility

It is known that wearing clothing that is too tight can threaten health, since it can prevent adequate blood circulation. And, in the case of fertility, especially in the case of male fertility, it seems that wearing clothing that is too tight (which also includes underwear) may be closely related.

And, it seems, the problem is found in the temperature of the testicles: for the testicles to be able to produce sufficient quality - and quantity - of sperm, it is necessary that the temperature of the testicles must always be lower than the core body temperature.

Indeed, it is for this reason that the testicles are located outside the body, and not inside.

The testicles can overheat when a man wears very tight underwear, or even pants that are too tight. Thus, if the testicles are too hot (several degrees higher than they actually should be), they cannot produce enough sperm, which ultimately results in a low sperm count, as well as cell damage.

In this way, when wearing tight clothing, the testicles are trapped very close to the body, not being able to move closer or further from the body depending on the body temperature. And if they can't do this, eventually the testicles end up being exposed to high body temperatures for long periods of time.

If, in addition, the use of tight clothing extends over time (for example, out of habit), the most common thing is that sperm production is interrupted, and may not return to normal until the temperature also returns to normal.

In this sense, sperm production usually takes between 10 to 11 weeks, so if the couple is especially looking to conceive a baby, it is necessary to keep in mind that anything done that damages the sperm will affect them for the next few weeks (at least up to 11 weeks).

Therefore, it may actually take several months for sperm counts to improve, especially if they have been reduced by the heat.

And in the case of women? Does it also affect?

The same thing also happens in women, although on this specific occasion it can cause the endometrial cells to escape from the uterine cavity, until they reach the ovaries.

On the other hand, the accumulation of sweat surrounding the area often also tends to cause problems, such as the appearance of fungus, itching and vaginal discharge. If the use of tight clothing is also maintained for long periods of time, it can cause the woman to experience different disorders, making it difficult for sperm to reach the cervical opening normally, thus making conception possible.

How to keep the testicles at optimal temperature

When caring for and protecting fertility, it is necessary to keep the testicles at the appropriate temperature. Therefore, it is vitally important not to wear tight clothing, and replace it with looser clothing - underwear as well. Below we propose some simple tips that will be very helpful to you:

• It is not recommended to wear tight underwear. The ideal is to replace it with looser underwear that is not tight and whose fabric is generally cool.
• Do not wear tight pants, especially during sports activities. It is advisable to wear looser clothing, especially if you sit for long periods of time (for example, for work reasons).

On the other hand, during the time in which you are trying to achieve pregnancy, it is also advisable to stay away from saunas and jacuzzis, since they can have negative effects on fertility, by raising body (and also testicular) temperature.