A single woman's question: When having intercourse, do men pee and ejaculate at the same time?

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I. Do men pee and ejaculate at the same time?

I believe many people have the same question, and feel a little repulsed at the same time, if urine enters the body during intercourse, isn't that dirty?

It is true that men ejaculate and pee in the same channel, but in fact there is a valve inside the channel, and this valve is the urethral sphincter.

When men are sexually aroused, the bladder sphincter and the urethral sphincter contract at the same time, creating a confined space between them where the sperm produced by the testicles mixes with prostate fluid and seminal fluid, and when the semen is stored in a certain amount, both sphincters stretch and open at the same time, allowing the semen to be expelled.

But the bladder sphincter doesn't stretch at this time, so no urine is expelled. In addition to the sphincter, the brain also monitors this and does not allow urine to be expelled.

So the passage is like a faucet; twist it one way for hot water and the other way for cold water. It's not like the urine is going to come out with the semen under normal circumstances, so don't worry too much about that.

Two, where do all the sperm that don't meet the egg go?

Men produce about 3-7 million sperm per gram of testicular tissue in 24 hours, and sperm maturation is cyclical, taking about 64 days from development to maturity, with men discharging 20-60 million sperm per intercourse.

While men ejaculate lots and lots of sperm each time, only 1 can successfully meet with the egg each time. The question is, where do all the sperm that don't meet the egg go? The truth is that most of the sperm die on their way to the egg, and there are several ways to die.

The pH of a woman's vagina is about 4.0, which is an acidic environment where it is difficult for sperm to survive, and a long stay can kill them.

The length of a woman's vagina is about 8cm, and a sperm is only 60 microns long. This distance requires the sperm to swim a long distance, and they may die of exhaustion before they can wait until they are near the egg.

Prolonged exposure to higher temperatures can cause sperm to die from heat, which is why the male testicles are outside the body, in order to keep the temperature lower for sperm to be produced properly.

Each time a woman ovulates, both fallopian tubes alternate, and sperm may find the wrong way in their search for an egg and eventually die from getting lost.

3. Coke kills sperm?

The story of Coke killing sperm is widely circulated, but is there a scientific basis for this story? The actual fact is that there is no such thing as a scientific basis! But this does not mean that you can drink a lot of cola on a daily basis, because the intake of large amounts of cola tends to affect your health and naturally the quality of your sperm.

In addition to the rumor that Coke kills sperm, there are also people who say that celery and playing with cell phones can kill sperm, both of which also have no scientific basis and should not be taken lightly.

The real sperm killers are these behaviors, which should be avoided on a daily basis.

1. Smoking and drinking

Alcohol not only affects liver health, but also impairs the quality of sperm. The company's main goal is to provide a comprehensive range of products and services to the public. One study found that the sperm count in men who smoked was 22% less compared to those who did not smoke.

2, sedentary

Long-term sedentary affects the blood circulation in men's perineum and pelvis, which then tends to induce prostatitis to occur, and in serious cases can make men sterile. In addition, sedentary also makes the testicular temperature rise, which also affects the quality of sperm.

3. High-temperature saunas

Long-term exposure to high temperatures will increase the local temperature of the testicles, which in turn will affect the survival rate and quality of sperm.

4. Staying up late

Staying up late for a long time can cause endocrine disruption in the body, which in turn can reduce the body's sperm production function and sperm vitality, and the sperm vitality in the male body will drop significantly after staying up late.

Extended reading - Can semen be used for cosmetic purposes?

This claim is not credible, as the main components of male semen are water and protein, and the amount is only 2-8ml at a time; if taken internally, it is broken down by the digestive tract, leaving little active ingredients, and if used externally, it is difficult to be absorbed by the skin and may cause skin irritation, and this amount is not enough.

Men's sperm quality is closely related to some of their daily habits, and the first thing you need to do to improve your sperm quality is to change your habits so that you don't smoke or drink, sleep regularly, and exercise more.