Most cervical erosions are physiological and are mainly affected by the level of estrogen in the female body; a few cervical erosions are related to inflammatory infections and may be caused by pathogens brought in during unhygienic intercourse. First of all, it is important to understand that cervical erosion is not an independent disease, but a clinical sign, mostly due to elevated estrogen levels, resulting in the outward migration of the columnar epithelium to the outer cervical canal, and presenting a celiac-like appearance. Since the columnar epithelium is very thin, the capillaries in the interstitial space below it are faintly visible and appear red, so it looks like “erosion” to the naked eye, but it is not really erosion. However, a few cases of cervical inflammation, which can also lead to this erosion-like appearance, are usually caused by bacterial infections, which may be related to sexual life, as unhygienic sex can lead to pathogens entering the vagina and even the cervix. Therefore, washing the vulva before intercourse, avoiding multiple sexual partners, and avoiding intercourse during menstruation can not only reduce the incidence of cervical inflammation, but also effectively prevent sexually transmitted diseases.