How long do spermatozoa live? The survival times of the seminal fluid and how many days the spermatozoa remain viable
How long do spermatozoa live
How long do sperms live after ejaculation? The lifespan of the sperm after ejaculation depends on the circumstances: usually the sperm remains viable for several days in the female reproductive tract and of course conception is possible as long as the sperm remains alive.
In this article
Survival of seminal fluid
When the sperm has penetrated into the female body it can succeed remain viable for up to 5 days, for this reason the fertile period of a woman’s monthly cycle is located in the 4 days preceding ovulation and on the day of ovulation itself since the ovum, on the other hand, can survive and can only be fertilized within 24 hours from its expulsion from the ovary.
Time of reaching the ovum
There sperm speed depends on several factors: in the fertile days the female cervical mucus creates a welcoming and favorable environment for the spermatozoa favoring their journey, moreover the same seminal fluid contains different substances such as prostaglandins, which somehow stimulate a contraction of the uterus which pushes the sperm towards the uterus. The spermatozoa can remain in the uterine cavity up to 80 hours and in this period, if one of them manages to reach the egg, fertilization will take place.
How many sperm do you need to get pregnant?
One sperm is enough to fertilize the female egg. It should be noted that for every sperm that manages to reach the egg there are millions that do not make it: on average with each ejaculation the man releases millions of spermatozoa. Reaching the egg is not an easy task: once the spermatozoa enter the vagina they make a long and tortuous journey towards the fallopian tubes where the egg is located.
Only a few spermatozoa are able to overcome the obstacles of this so complicated journey and, according to experts, this arduous path is nothing more than a way that nature sets to be able to make a sort of natural selection: only the strongest and healthiest will go on. and they will push themselves to the fallopian tubes, millions of others, those weaker and with little chance of conceiving a healthy child, die along the way.
Furthermore, only one sperm will be able to penetrate the egg, which is protected by a rather thick protective membrane.
When conception occurs after intercourse
Studies conducted in this regard suggest that spermatozoa employ, on average, two to 10 minutes to travel from the cervix to the fallopian tubes where they hope to encounter an egg and this action occurs regardless of severity. Sperm can swim upward, through the uterus, regardless of where the female body is.
When there is an egg waiting, conception can take place as soon as three minutes after intercourse, but since the sperm survives for up to five days, if you ovulate within this fertile period you can conceive even days after intercourse. .
The conception (when the egg is fertilized by the sperm), therefore, it can happen three minutes after sex or even up to five days. Implantation, that is when the fertilized egg nestles in the uterine wall, occurs five to 10 days after fertilization. A pregnancy starts when implantation occurs.
Does seminal fluid die in contact with water?
On a surface dry, such as clothing or bedding, andair the spermatozoa lose vitality as soon as the seminal fluid dries up. In water, such as in the bathtub, it can remain viable for longer but it is unlikely that the spermatozoa will be able to find their way to the egg.
Scientists believe sperm can survive indefinitely once frozen, as long as the temperature remains stable. At an extremely low temperature all the essential functions of sperm are completely disrupted, but when they are thawed, they become vital again. Cryopreservation of eggs, as well as that of sperm, is a relatively new technique that is used, for example, in the case of cancer at a young age, people who are undergoing treatment for infertility or have another pathology that may have an impact on their reproductive capacity.