The woman is small

Both men and women have reproductive organs, and women's reproductive organs are more complex than men's. Not only in terms of structure, but also in terms of combination and shape, they look very complicated. When a woman's body reaches adulthood, it is already mature. If you find that your genitals are very small or have undeveloped parts at this time, you need to go to the hospital for relevant examinations.

The vagina is a muscular tube composed of mucosa, muscle layer and outer membrane. It is highly elastic and connects the uterus and external genitalia. It is the female's sexual organ and also the channel for discharging menstruation and delivering the fetus. The normal pH value of vaginal secretions is 3.8.

The vagina is often in a collapsed state with the anterior and posterior walls in contact. The lower part of the vagina is narrower, and the lower end opens into the vaginal vestibule at the vaginal orifice. There is a hymen around the vaginal opening of a virgin, which can be ring-shaped, crescent-shaped, umbrella-shaped or sieve-shaped.

After the hymen ruptures, a hymen mark remains around the vaginal opening. The upper end of the vagina is wide, surrounding the cervix and vagina, forming a circular depression between the two, called the fornix of the vagina.

vagina), which can be divided into the front, back and two sides. It is deepest at the posterior part of the vaginal vault and is closely adjacent to the rectouterine pouch, separated only by the vaginal wall and a layer of peritoneum. It has great practical significance clinically, for example, the accumulated fluid in the depression can be drained through the posterior fornix.

The vagina is adjacent to: the bladder and urethra in front, and the rectum in the back. Clinically, the condition of the rectouterine pouch, cervix and cervical os can be palpated through the rectal wall. The lower part of the vagina passes through the urogenital diaphragm. The urethrovaginal sphincter in the diaphragm and the medial muscle fiber bundles of the levator ani muscles both have a sphinctering effect on the vagina.

Anomaly Analysis

Inner vagina

The major factors that affect the vaginal microenvironment include:

1. Vaginal development and maturity

2. Is the regular contraction function of the vaginal muscle layer normal?

3. Is the secretory function of vaginal mucosal cells normal?

4. Quantity and activity of sperm activating factors in vaginal secretions

5. Acidity and alkalinity of vaginal secretions

6. Vaginal inflammation

7. Levels and ratios of sex hormones in the body

8. Peripheral nerve function and regulation

9. Microvascular system function and blood supply (supply of oxygen, nutrients, and removal of cell metabolic products)

The vagina is one of the main channels for transporting sperm. Whether the vaginal environment is good directly affects the survival rate of sperm and the combination of sperm and egg.

vulva

In addition to the various factors that affect the vaginal microenvironment itself, such as the host's metabolic products and the products of the bacteria themselves, the vaginal microenvironment has exogenous factors, including:

1. Sexual intercourse

2. Rinse

3. Lifestyle

4. Other interference

The vaginal microenvironment is thus unstable. The vaginal flora is very complex. In addition to protozoa and fungi, it also includes many aerobic and anaerobic bacteria. These microorganisms can be divided into commensal and pathological ones. They all grow in a common environment and there may be antagonism between the microorganisms. Another factor that affects its growth is the hydrogen ion concentration. At pH 3.8-4.2, it is conducive to the reproduction of commensal bacteria, especially Lactobacillus, which is the main species in a healthy vagina. The density in vaginal fluid can reach 105-108 ml. When the vagina is infected by microorganisms, if Lactobacillus is dominant and can still maintain pH 3.8-4.2, it will not cause disease. Moreover, Lactobacillus can also produce H202, which is toxic to other microorganisms and inhibits their reproduction. Others such as Streptococcus lactis, Enterobacter, Proteus, Gavagelococcus, and Veillonella are common in the lower end of the vagina and usually do not cause symptoms.