Normal anterior and posterior cervical diameters of about 2~3.0cm, cervical anterior and posterior diameters of about 2.4cm parenchymal echogenicity is normal. Take non-pregnant women as an example cervical anterior and posterior diameters, the normal is about 2~3 cm, the cervix is cylindrical, cervical anterior and posterior diameters are greater than 3 cm, consider the cervical hypertrophy, the cause of hypertrophy, such as chronic cervicitis, cervical fibroids and so on. If it is less than 2cm, it may be congenital dysplasia or cervical atrophy. After the ovarian function declines, the hormone level decreases, and the anterior and posterior diameter of the cervix will become smaller with it. Uniformity of parenchymal echogenicity is a term used in ultrasonography to indicate that the cervix is in a normal state, with good blood circulation in the muscular layer, indicating that there are no myometrial nodules, fibroids, etc., and that no special treatment is needed. The anterior and posterior cervical diameters of 2.4cm are normal. If you are not sure, you can also go to the hospital and have it checked under the guidance of your doctor.