Endocervical length in late pregnancy

In the late stages of pregnancy, you should go to the hospital regularly for routine prenatal check-ups. Only in this way can you know the actual condition of the fetus in your belly through examinations, so as to avoid any problems that cannot be dealt with in time. Sometimes you will find that the length of your cervical canal has changed. You should do further examinations based on your examination results to know whether the changes in the length of your cervical canal are within a reasonable range.

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.

(1) Vaginal examination: Observe the position, shape, size of the external opening of the cervix, the amount and nature of secretions, and the presence of cervical erosion and neoplasms, and pay attention to the presence of cervical lifting pain and parauterine tenderness. At the same time, bacteriological examination of cervical mucus is performed. If necessary, do a scraping or colposcopy.

(2) Probe examination: It is simple and practical. It can detect the direction and length of the cervical canal and its ratio to the cervix, as well as the presence of stenosis, adhesions, and the tightness of the internal cervical os. For those suspected of abnormalities, further angiography should be considered.

(3) Contrast examination: Hysterosalpingography can not only detect uterine and fallopian tube lesions, but endocervical canalography is also extremely helpful in studying infertility. When oil is used and the contrast instrument does not affect the development of the cervical canal, the length and shape of the cervical canal can be well displayed. Endocervical growths, congenital malformations, stenosis, adhesions and uterine buckling can all be clearly diagnosed. Endocervical fibroids and polyps appear as filling defects with smooth edges on endocervical films.

The edges of cervical adhesions are often irregular serrated. The cervix of a hypoplastic uterus is narrow and long, while the cervical canal of a tuberculous uterus is relatively wide and has brush-like changes. Angiography can also be used to measure the length and proportion of the cervical canal and uterine body. Angiography is often successful, especially for patients with genital dysplasia and cervical stenosis who have failed probe examinations.