COITUS Interruptus refers to a way that the penis is pulled out when ejaculation is about to occur during sex, causing semen to shoot outside the woman.It is often used as a contraceptive method, but this method is unreliable and has certain harm to the body.
Entry ejaculation is a complex process that includes erectile, launch, in vitro ejaculation and orgasm.Economics is due to the swelling and hardening of the penis. Its primary nerve dominance comes from the sacral plexus and the pelvic visceral nerves or erectile nerves.The launch is the prostate part that includes semen before exterior ejaculation and transports it to the urethra. With the closure of the bladder neck and remote urethral sphincter, the prostate part of the urethra becomes a storage pond.This will induce external ejaculation, that is, the semen through the urethra radiating rhythm. In this process, the participation of the perineal skeletal muscle is essential.The orgasm of men is a kind of thing that is involved in the brain and is emotional, and is connected to the precision of the body.
Many people like to use external ejaculation contraceptives because of taking contraceptives with great side effects, such as can cause depression, loss of sexual desire, weight gain, headache, etc.In vitro radio spermatogenesis, no cost, no need to use any tools or drugs, no side effects of the body, and will not affect the pleasure during sex.
Disadvantages of in vitro ejaculation
Compared with the use of condoms, taking contraceptives, and using contraceptive rings, the success rate of in vitro radio essence contraceptives is low.Although the use of external ejaculation does not require any cost, due to the low success rate, users must bear greater risk of pregnancy.
If the partner is suffering or or the use of external ejaculation method does not prevent infection.Because the virus and bacteria are also transmitted to each other through body fluids and mucosa.
Sudden interruption of sexual intercourse when the man reaches the climax, it will cause frustration to the other party and dissatisfy the partner.Scientists Masters and Johnson believe that frequent use of external ejaculation can cause premature ejaculation or premature ejaculation.
In the process of sexual intercourse, the penis will have an erection due to sexual excitement. If the sexual intercourse is forcibly suspended at this time, the function of the ejaculation center of the central nervous and waist dice will occur. Over time, it will easily suffer from functional non -ejaculation.
Harm of ejaculation in vitro:
It is easy to cause contraception failure
The in vitro exclusion refers to the moment when the sexual intercourse reaches the climax, and the moment of ejaculation is about to interrupt the sexual intercourse, so that the semen is arranged outside.What do this natural contraception often fail to achieve the purpose of contraception?There are three reasons for failure to fail:
胞 1 子 Sperm cells usually flow out of the urethral mouth with the shrinkage of the vollarization tube before ejaculation. Each drop contains about 50,000 sperm. If it flows into the vagina, a drop of semen can make women fertilize;
到 2 冲 At the most tense stage, the timing of drawing the penis may be too late due to the pleasure of men's attachment, so that some semen ejaculates in the vagina;
体 3 时 Sometimes after ejaculating in vitro, men immediately stroke the woman's genitals to make her climax, or they can do a second sexual intercourse for a long time. In these two situations, both fingers and penis may bring the sperm again into the sperm again.vaginal.
