Where is the cervix located?

Many women do not know much about themselves. For example, where is the location of the cervix? Many women are not very clear about this. They can consult for such questions, which can help women take care of their cervix in normal times. The cervix is ​​prone to disease. Once it is diseased, it has a great impact on women's fertility. Women should also pay attention to this. The following is a detailed introduction to the location of the cervix.

Location of the cervix:

The cervix is ​​located in the lower part of the uterus. It is approximately cone-shaped, 2.5 to 3 cm long, with the upper end connected to the uterine body and the lower end extending deep into the vagina. The vault at the top of the vagina divides the cervix into two parts: the part of the cervix that protrudes into the vagina is called the cervicovaginal part, and the part above the vaginal vault is called the upper cervicovaginal part. The center of the cervix is ​​a long, fusiform lumen that is slightly flattened front to back. Its upper end is connected to the uterine cavity through the internal cervical os, and its lower end opens to the vagina through the external cervical os. The cervical canal is between the internal and external openings. The external cervical os is round in nulliparous women and transversely fissured in women who have given birth through vaginal delivery.

The size of the cervix and the ratio of the uterine body vary with age and endocrine status. The cervical wall is composed of the mucosa, muscularis and adventitia.

① The endocervical mucosa is the uterine endocervix, which is covered by a single layer of columnar epithelium that secretes mucus. The epithelium sinks into adenoid crypts in the lamina propria, which are commonly called cervical glands. They can secrete mucus, which is the main component of leucorrhea.

② There are reserve cells on the surface of the endocervical canal and below the glandular columnar epithelium and above the basement membrane, which have the bidirectional differentiation potential of proliferation and differentiation into columnar epithelial cells and metaplasia into squamous epithelium;

③ The area from the external cervical opening to the vaginal vault is covered with stratified squamous epithelium;

④ The junction between the columnar epithelium of the cervical canal and the squamous epithelium of the vagina outside the cervix is ​​called the transition zone or transformation zone of the cervical epithelium. The position of the junction between the two types of cells is not fixed and varies with the female body.

In terms of understanding the position of the cervix, if a woman has any abnormalities in her cervix, she needs to undergo a physical examination first so that she can have a good understanding of her own problems and choose the correct method during treatment. At the same time, when treating the cervix, she should choose a conservative method to avoid causing more impact on the cervix. This is also something women should know.