What is the phenomenon after the hymen is broken? Great gods, help!

Your question is too complicated: the concept of hymen: the vaginal orifice is located in the posterior vestibule behind the external urethral orifice. There is a thin layer of mucosal folds around it, called hymen. Hymen is a perforated membrane covering the center of female vaginal orifice, which is located at the junction of vagina and vaginal vestibule. Both sides of the film are pink and the surface is wet. The hymen of teenagers is small and thick. As the female body matures, the hymen will gradually become larger and thinner, with considerable toughness. The hymen of adult women is about 1 to 2 mm thick and contains connective tissue, microvessels and nerve endings. There is a small hole with a diameter of 1 cm- 1.5 cm in the center of the hymen, which is called "hymen hole" in medicine, and menstruation is excreted through this hole. The shape of this small hole varies from person to person. According to the shape of the opening, hymen holes can be divided into more than 30 kinds, such as round, oval, annular, sieve-shaped, umbrella-shaped, lobulated, star-shaped, separated, crescent-shaped, half-moon-shaped and lip-shaped. Common hymen holes are round and oval. In the Arab world, crescent-shaped hymen holes are considered the most precious, because such hymens are rare, with an average of about 15 per 65,438+10,000 people. In fact, there is no difference in the physiological function of any shape of hymen hole, let alone precious or not. "Hymen scar": Usually the hymen hole allows a finger to be inserted slowly, but there are exceptions. Some girls may be born without hymen holes, just as some people have some birth defects. In some movies and novels, there is often a lot of blood flowing on the cloth as a symbol of female chastity, giving people the impression that a virgin will bleed a lot when her hymen breaks during her first sexual life. From a medical point of view, this is not very accurate. In fact, when the hymen ruptures, there is not as much bleeding as when the big blood vessels rupture. The amount of bleeding is mostly small, only a few drops or dozens of drops of blood, and some women may not even have a drop of blood. After sexual intercourse, the hymen is broken and the periphery is irregular, but the texture remains soft and the scar is not obvious. When a woman gives birth, due to the delivery of the fetus, the hymen is further damaged, and then several smaller ridges are left, which are called "hymen marks". The role of hymen Before puberty, the female reproductive organs were not fully developed, and the vaginal mucosa was weak and low in acidity, which could not stop the invasion of bacteria. At this time, the thicker hymen will take on this important task and protect the female reproductive system. After puberty, the female reproductive organs are gradually developed, and the vagina has the function of resisting bacterial invasion, while the hymen is gradually weakened, thus losing this function. Therefore, for mature women, the hymen no longer has any physiological function. The real role of the hymen in women has never caused many old and often new topics like the hymen, and no organ will stage a farce of human destiny like the hymen. Hymen is a part of female reproductive organs. It appears, develops and forms when the fetus is 3 ~ 4 months old, and the shape and thickness of adolescent hymen are the same. Its pores can be wheel-shaped, ring-shaped, half-moon-shaped, sieve-shaped and other forms. It is a layer of mucosal tissue located at the vaginal opening and vaginal vestibule, which is in the shape of a ring fold, about 0.5 cm wide, with holes in the middle for menstrual blood and secretions to flow out. Only a few women are born without hymen, and only a few women have no pores on their hymen, so they are called "barren women". As a barrier to external genitalia, hymen is a barrier to sexual life from a physiological point of view and a barrier to prevent penis from entering vagina. This kind of obstacle may bring different degrees of pain to the woman only from the physiological reaction. Some women will suffer from long-term sexual pain due to the role of hymen fragments. It should be said that the role of hymen in sexual life is not good for the man, but will bring some pain to the woman, and the hymen is not good for both husband and wife. In sexual life, it may also pose a threat to the sexual physiology and psychology of both men and women. If the "stubborn resistance" of the hymen makes the man "unable to have an attack for a long time", the man will ejaculate too quickly because he is too excited and nervous. If the man has a mental burden, it may become a cause of premature ejaculation in the future. In addition, if the woman is nervous and the man is too impatient or rude, in the case of the first sexual intercourse, the woman may also have some pain, which will leave a strong psychological shadow on the woman and make some women form sexual apathy and vaginal spasm for a long time after marriage. Therefore, the emergence of sexual dysfunction in both men and women is not unrelated to the existence of hymen. With the development of human society, the hymen of most mature women will be destroyed by the combination of men and women, leaving only deformed fragments. From an evolutionary point of view, the hymen seems to be an unnecessary organ. However, another principle of "survival of the fittest" in nature is applicable everywhere. It is also an important law of nature to "use it to make progress, abandon it and waste it". Since the hymen has a negative impact on the first sexual life of both men and women, and it will break sooner or later, why does it still exist? That is, what is the function of hymen? After discussion, some scholars put forward the following two hypotheses: 1, Protecting the female reproductive system: This theory holds that the hymen protects the female reproductive system and even the body. It is a barrier to protect yourself from disease and evil. The hymen guards the vaginal door and can prevent urine from entering the vagina. In ancient times, women had no dresses. At most, they are wrapped in an animal skin, and the open lower body is easy to cause bacterial invasion. However, the vaginal wall of girls is relatively thin and the ovarian development is incomplete. They rely on hymen as a barrier to protect the internal reproductive system and women's fertility. Some scholars believe that before 16 ~ 18 years old, women's bodies are not fully developed, and the hymen is very thick, which is an early warning device to avoid premature sexual life. For women, premature sexual life is easy to lead to cervical cancer due to repeated infections in the cervix. And starting sex too early will have a negative impact on eugenics. The hymen has just played such a preventive role. Because for men, it is difficult to cross the tough membrane defense line if they want to have sex with immature girls. For women, premature sexual life will bring considerable convulsions to the body. According to the investigation of medical experts, when the hymen breaks, more than 2/3 will feel pain, accompanied by bleeding. The earlier you get married, the more obvious this phenomenon is. 2. Used to select the strong among men: The theory holds that the main function of hymen is to select the strong among men and promote excellent sperm to enter the body for fertilization. In primitive human society, human marriage is relatively free and chaotic. There is no suitable choice, no age constraints and restrictions. The combination of sexes is very random. The existence of hymen can prevent the possession of girls by elderly men and people with sexual dysfunction. This can reduce or prevent the generation of suboptimal offspring, which has the significance of selecting the strong to evolve. Because the sexual ability of the elderly is relatively weak, and most people with impotence are also people with poor physical fitness or illness. There is a certain correlation between sexual ability and physical strength. The existence of hymen has become a barrier to test sexual ability. Those who break the customs are all strong patent numbers, which can leave the genes of future generations. Those who can't get in are often weak and have little or no chance to reproduce. This natural law of survival of the fittest is realized through the examination of hymen, which may be one of many methods. Both theories seem to have some truth. So which of these two reasons is natural? Or do these two reasons play a role in * * *? But so far, there is not much strong evidence in anthropology to prove these theories, especially the latter. Or nature itself has not completely eliminated this insignificant small film in the process of buying goods. Therefore, the mystery of the real function of hymen may continue to be explored and debated.