How long sperm lives—inside the body or on early surfaces—is more than just a “ fun fact. ” It can actually impact your ability to conceive. Knowing that sperm live for 3–5 days in the female generative system, for example, means you could have sex respective days before your partner ovulates and still result in a pregnancy .
Let ’ s explore how long sperm can live in different scenarios, and bust a few myths along the direction .
How long does sperm last inside the female generative tract ?
One wide believed myth is that sperm merely survives for a very unretentive time. Studies show that the average length of clock that sperm know, once ejaculated or inserted into the female generative system, is around three days. This depends on where she is in her menstrual cycle, however—with good the right field time, stronger sperm could last up to five days.
A lot depends on the consistency of cervical mucus. During ovulation, changes in hormones alter the composing of cervical mucus, offering a protective consequence that keeps sperm from drying out as cursorily. alternatively of its characteristic opaque texture, the mucus thins, providing just the justly host environment to protect sperm without preventing movement .
The neck besides has another method acting for holding on to sperm around the clock of ovulation : cervical “ crypts, ” modest channels off the cervical duct. These crypts can actually serve as temp storehouse spaces for sperm, which is then released over time, increasing the chances of fertilization .
What this means is that the “ fat window ” is actually up to 5 days before a woman ovulates. It besides means that you can have sexual activity one day, and not fertilize the egg until days later—and in fact, this is the character with most pregnancies ( as it ’ randomness rare to pinpoint the accurate moment of ovulation ). This is crucial to know whether you ’ re trying to conceive, or trying to avoid pregnancy .
How long does sperm live elsewhere ?
Everyone knows the urban myth : two teenagers make out in a hot bathtub, and one ejaculates. The sperm swimming through the water into the early ’ second vagina, and storm ! pregnancy, even though they didn ’ t have sexual activity .
fortunately, this international relations and security network ’ t reality. Sperm are highly improbable to :
- swim that far. Sperm are not Olympic swimmers. The female generative system actually helps wheedle sperm along ; without this help, they ’ rhenium not going far .
- survive in heat. Studies beginning around 1941 suggest temperatures higher than that of the human body affects sperm life and quality. While these studies measure scrotal temperature, we can conclude that heating system itself has a negative consequence on sperm ’ randomness viability .
so, in all likelihood, sperm ejaculated into a hot tub or bath would not live long adequate to land inside a vagina—they ’ five hundred outlive only a few minutes .
even in a room-temperature or body-temperature environment, sperm are improbable to survive more than an hour or therefore outside the body. One of the most significant factors affecting sperm survival is humidity. Sperm are carried in semen, a fluid that nourishes and buffers them ; once semen has evaporated, there ’ randomness nothing to protect sperm. Sperm that down on a dry open would be golden to last more than an hour .
Read more: Weird Sex Positions You Need To Try
Wait, then how does mail-in sperm testing bring ?
Mail-in sperm testing kits like Legacy ’ randomness consumption a conveyance media, an component that ’ s clinically proven to protect sperm during nightlong ship. additionally, our kits are insulated and extensively tested to ensure samples are not susceptible to sudden temperature changes in transit. These measures extend the life of sperm outside the body to at least 48 hours, without significantly affecting the health of sperm .
Learn more about the science of at-home sperm testing .
How long does sperm last in the testicles ?
spermatogenesis, or the process of producing sperm, takes approximately 72 days, and it ’ s happening endlessly in the testicles. Once they ’ re suppurate, sperm live in “ storage ” in the testicles—specifically, in the cauda epididymis—for angstrom long as a few weeks. After that, they ’ re reabsorbed into the body .
But while in repositing, sperm quality is decreasing fairly quickly. Studies indicate that DNA fragmentation and mitochondrial price increase after 5 days of abstinence, and motility decreases as well after about 7 days .
That ’ s why, although sperm counts increase a day or so after ejaculation, an elongated period of abstinence international relations and security network ’ t beneficial for sperm. If you ’ re trying to conceive, it ’ south good to have sex every 1–2 days during your collaborator ’ second prolific window .
How long can sperm last if you freeze it ?
Freezing your sperm protects its quality, whether you ’ rhenium freeze in the short term or looking for long-run storehouse. ( We ’ re not talking about sticking your sperm in your family freezer—medical cryopreservation is done with liquid nitrogen at a temperature of -196ºC. )
A 2019 survey examined the long-run impression of freezing on homo sperm and pregnancy outcomes, looking at over 119,000 donor sperm samples. The study found that :
- Cryostorage lasting up to 5 years had no effect on the survival rate of sperm .
- After 5 years, there was a small decrease in sperm ’ randomness survival rate ( from 86 % to 74 % over 15 years ). however, this had entirely a minor impingement on birth rates when this sperm was actually used in insemination. be birth rates for the group that stored for less than 5 years was 82 % ; for the group that stored for 6–15 years, the LBR was 80 % .
The researchers concluded that “ long-run cryostorage of semen in a human sperm bank does not affect clinical outcomes. ” So, we can safely say that, once freeze, sperm can death indefinitely .
Choosing to preserve your sperm
If you ’ ra think of freezing your sperm, using an industry-leading cryo storehouse facility can provide the best consequence whenever you decide to become a parent. If you freeze with Legacy, your samples are stored at several different facilities to mitigate any localization risks and monitored 24/7. This is one tone you can trust to help keep your sperm safe and protect your chances of starting a family .