Why does ejaculation leak out?

After sexual intercourse, both men and women will reach an orgasm at the same time. At this time, both will feel very comfortable, and the woman may even scream involuntarily. The man will ejaculate into the woman's vagina at this time, but each time the man ejaculates, there are hundreds of millions of sperm. These sperm cannot completely enter the woman's uterus, so some will flow out. Let's take a look at why ejaculation flows out.

Ejaculation, a basic term in biology, is the reflexive action of male animals to eject semen during sexual intercourse. For humans, ejaculation is a series of coordinated actions of various parts of the reproductive system, and semen is ejected from the penis.

It consists of a two-step spinal reflex, the primary of which is centered in the lumbosacral spinal cord, with sensory impulses transmitted by touch receptors in the glans penis. The neurophysiology of ejaculation is only partially understood. Studies have shown that dopaminergic systems promote ejaculation while serotonergic systems inhibit ejaculation.

The primary neural mechanism of ejaculation is somatic innervation, but it also involves nerves and fibers from the autonomic nervous system in the vagina. The autonomic branches of the parasympathetic nervous system primarily control erectile function, while the sympathetic and somatic branches primarily control emission and ejaculation.

The strength and distance of male ejaculation are directly proportional to sexual ability. The ejaculation distance of normal healthy men is 20 to 60 cm, and the ejaculation distance of strong young men can reach 1 meter. However, with the decline of sexual ability and the increase of age, the reaction during orgasm will also degenerate. The strength and distance of male ejaculation gradually decrease and shorten, and the semen does not spray out, but overflows or flows out, which is called weak ejaculation. The ejaculation distance of men after the age of 50 is about 10 to 20 cm, or even shorter. People with weak ejaculation are often accompanied by a decrease or disappearance of pleasure, or even no feeling of ejaculation.

A man's ejaculation ability reflects his sexual ability, sexual feelings and physical condition to a certain extent. The more powerful the ejaculation, the farther the distance, the more semen, and the greater the sperm density, the better the health of the man, the stronger his physical fitness, and he will definitely perform well in his sexual life. Many men with low sexual function and decreased libido, especially middle-aged and elderly men, often complain to doctors that they have lost their ability to ejaculate. In the past, they "ejaculated", but now they "flow out".

However, the force of ejaculation varies from person to person, and the distance of ejaculation also varies significantly from person to person. Some people are very energetic and have enough physical strength, and the distance of the ejaculation can exceed 1 meter; some people can only ejaculate a few centimeters away, or just leak out of the urethra, which is not necessarily a serious disease.