A priori does not have the likelihood Hymen aperture, some people have no less than some kind of congenital defect is same.
Introduction of net of the way to keep in good health: Pair of women saying on mouth of a lot of men is maiden be indifferent to, not be man place actually those who say in that way, a lot of men still have maiden complex. Do you know what the action of female Hymen is? Later development tells you, what is the action of Hymen.
What is the action of Hymen?
In fetal 3-4 appear when the month, development, form, to the Hymen configuration when adolescence and thickness each one. Its hole can show a variety of pattern such as shape of round of shape, cricoid, half moon, sieve shape. It is to be located in a mucous membrane inside vestibule of vaginal mouth, vagina to organize, show one quoit form to knit shape foldsing in a garment, about 0.5 centimeters or so wide, there is opening among, so that menstrual blood and secretion are poured out of.
Hymen is place of other female animal do not have and provide alone at human woman place only, only few number female does not have Hymen inherently, there also is hole on Hymen of few number female only, call a woman with a hypoblastic vagina.
Hymen serves as a protective screen of external genital organs, tell from physiology angle, it is the obstacle of bisexual life, it is to prevent what the penis enters the vagina to cut off, this kind cuts off sheet looks from physiology reaction, it may bring the painful feeling with different level to the woman. Because of,some women are met the action of Hymen relic, the sexual intercourse that makes growing time is painful. Should say, hymen is in the action in sexual life, do not have what advantage to the man, can bring certain anguish to the woman, hymen is adverse to both sides of husband and wife.
In sexual life, return may bilateral to the men and women gender physiology and sexual psychology to constitute menace, if encounter the dogged resistance of Hymen, make the man long attack no less than, criterion because the man is overexcited appear to ejaculate too quickly with insecurity, if the man bears thought burden because of this, after be being become likely a reason of premature ejaculation.
Additional, if woman mood is nervous, too impatient or the man is cloddish, be in the first time below coital circumstance, the woman produces certain ache likely also, as a result leaves the psychological shadow of dense to the woman, make some women form convulsion of frigidity, vagina inside quite long after marriage time. So, the existence of the occurrence of the sexual dysfunction of both sides of male and female and Hymen does not have nothing to do is.
Human society develops today, the Hymen of most mature female will be destroyed because of male and female union, keep the tag that was out of shape only. Look from the angle of Darwinism so, hymen is a redundant organ it seems that. However, nature the principle of another survival of the fittest is everywhere applicable.
Use into useless retreating also is nature a fundamental law. Since Hymen is bilateral to the men and women nocturnal sexual life brings adverse effect first, and want sooner or later by break, why to let it exist even? Also namely what is the action of Hymen?
1, system of protective female reproduction
This kind of doctrine thinks, hymen is rising to protect action to reproductive system of the female and even body. It is him protection, prevent the protective screen that ill evil inbreaks. Hymen beefeater is at the door the vagina, it can enter the vagina with preventing uric fluid. Antediluvian woman does not have garment skirt, they surround a hide in the private parts at most, the private parts that open wide causes a bacterium easily inbreak.
And vaginal wall of the girl is thinner, ovarian development have not sufficient, rely on Hymen completely this protective screen, the system of the reproduction inside protection, fecundity that protects a female. Still some scholars think, in 16-18 year old previously, the female’s body is done not have full-fledged, hymen is very fat also thick, this is a kind of cautionary plant that avoids to live sexual life prematurely.
To the female, live sexual life prematurely, be affected easily because of what palace neck relapses and cause palace neck cancer. And, begin sexual life prematurely, to prepotent actor Yo, also can bring adverse effect. Hymen just had the effect of a kind of such precaution.
Because be opposite for the male, should with crudely the girl lives sexual life, overcome hard still very tough processing film defense line. And to the female, premature sexual life, the body that meets oneself brings quite big Jing. According to medical home investigation, when Hymen is touched to defeat, the meeting that arranges 2/3 above feels aching, the haemorrhage that accompanies. Marry earlier, this kind of phenomenon is more apparent.
2, the overmatch in male of choice of in order to
This kind of theory thinks, the main function of Hymen depends on choosing the overmatch in the male, make admirable spermatozoon enter the be fertilized inside body.
In primitive society period of the mankind, human marriage compares freedom and disorder. Without the choice of be matched for marriage, do not have the age manacle and restrict. The optional sex of bisexual union is very big. The existence of Hymen can prevent function of senile male and sex low person to the girl have. This can decrease or prevent to bear not quite optimized offspring, have the developmental sense that chooses overmatch.
Because, year the person that sexual ability of the old man compares incapacity of weak, sex also is the person with poorer or sick constitution mostly. The gender can have certain dependency between force and physical strength. The existence of Hymen became the toll-gate of a inspectability ability. The broken person that close is the patent date of strong record, can leave unborn gene, cannot entrant often is the weak, their less or unborn without breed opportunity.
The natural rule of discard of bad of this kind of superior, rely on Hymen examine will come true, perhaps be one of numerous methods.
These two kinds of theory have stated reason it seems that. So is nature in stemming from these two kinds of reasons which kind of? Is or these two kinds of reasons having effect jointly? But up to now, anthropologic the evidence that goes up to still do not have much rarer force proves these theory, especially latter.
Or nature itself still does not have the little film that washs out this to do not have much great sense thoroughly in process of replenish onr’s stock. Accordingly, the answer to a riddle of the real action of concerned Hymen, perhaps continue even hunting and debate continue.
The development of Hymen
The Hymen development of different animal is different also, because the growth function of an introductory Hymen is with the mankind under this.
Hymen is in fetal 3 ～ appear when 4 months, development, form, mix to the Hymen configuration when adolescence thickness is differ, the Hymen of general adolescent is lesser and thick, mature as the development of woman body, hymen can become big and thin gradually, have the tenacity that comparative. The Hymen of grown woman about thick 1 to 2 millimeter.
Hymen is enclothed in the vagina close outside buccal place, 2 millimeter of about 1 ～ are thick, there is an alveolus among, cry ” Hymen aperture ” , the diameter is 1 centimeter about, it is normally circle, elliptic or zigzag; Some shows half moon, velar opening slants at a side; Some is lie between form aperture, two alveolus make fluctuation or left and right sides stand side by side; Some has a lot of dispersive alveolus, resemble bolt.
When menstruation, outside adopting system of this alveolus eduction via blood. If there is alveolus on film, criterion classics blood of every months is held back, build up in the vagina, expand up uterine antrum and oviduct, in flowing into abdominal cavity even, cause tubal damaged, bowel is in charge of adhesion, celiac infection, call on medicine ” Hymen closedown ” , must apply operation of department of gynaecology.
In our preadolescence, because ovarian excretive estrogen is little, vaginal mucous membrane is thin, knit a wall little, acidity low, resistance is weak, hymen has bacterium of block the way to inbreak vaginal action. After adolescence, as ovarian development, grow in quantity of the estrogen inside body, vaginal resistance is strengthened, hymen also lost action.
The first time sexual intercourse, hymen is defeated by the top and form breach, cause haemorrhage.
As a result of Hymen configuration each different, cracked degree can have very big difference. Those who have two opening is medium the haemorrhage when lying between form Hymen burst is more, companion has more acuteness ache. Hymen of labial lip form bleeds less, do not have keenly feel almost. Thicker and stretch and very good umbrella form Hymen is possible complete not burst.
According to the investigation of American gynecologist, the woman that has 30% about did not bleed when making love for the first time or very few. This 30% in include the umbrella form Hymen with stronger flexibility, it may be in for many times after sexual intercourse or the ability after the brigade in the passion that compares insanity some is met burst, but may not bleeds. Still include extremely easy cracked Hymen of poriferous sieve form, it may be in the first time before sexual intercourse already because of all sorts of reasons burst.
Because childbirth of fetal classics vagina goes out, hymen is farther damaged. What leave a few remaining only sometimes is protuberant, call Hymen mark. Caesarean birth childbirth won’t produce this kind of change.
Preadolescence, reproductive organ of the female have not development is perfect, vaginal mucous membrane more fragile, acidity is inferior also, consequently cannot of bacterium of block the way inbreak. And at this moment Hymen is thicker, also bear this one heavy responsibility, rise to protect the action of female reproduction system. After adolescence, reproductive organ of the female gradually development is perfect, the vagina has had the effect that counteractive bacterium inbreaks, and Hymen becomes fragile gradually however, also lost this one action. So, for mature to development female, hymen has had what physiology function no longer.
How does Hymen arise
In a few culture, hymen has the basis that intuitionistic morality comments on, but Hymen is in the meaning on biology, it is an organization part.
Hymen is the carry-over of embryonic development, in female the final phase of fetal development, in the process that fashions complete vagina, the constituent bequeath that vaginal mouth is in. By stretch connective tissue (ligament of Elastic Connective Tissue, main artery and lung also organize composition by this kind) with collagen connective tissue (Collagenous Connective Tissue) collective composition, next two sides on its all are enclothed have compressed epithelial (Squamous Epithelium) . And the intensity of Hymen is not lifetime keep changeless, change along with the age and the flexibility of its Hymen is changed.
Inferior before manhood, as a result of ovarian not development, the lack of female hormone can make Hymen attenuates. In this period, its extend sex is poorer, relatively flimsy also. Should enter inferior manhood period, the change of female hormone level can make Hymen can change gradually thick, its flexibility continues to increase later. The burst that the vagina makes love to be able to not cause Hymen certainly (inspect the configuration of Hymen and decide) , or burst can stay to issue easy to read and understand crack namely.
And when be pregnant, as a result of female hormone level lift again, make Hymen again thickening and bouncy, as to bear, can bring about Hymen to be torn off completely. Of course, if had not given birth to the child all the time, so the arrival as the turn of life, female hormone level falls, hymen can become very thin and flimsy.