Cervical glandular retention cyst is a natriuretic cyst. Normally, there are glands on the surface of the cervix, and when the glands produce secretions, the secretions will be discharged out of the cervix through the openings of the glands. However, when the openings of the glands are blocked for some reasons, the secretions cannot be discharged and accumulate in the glands, thus forming a cervical glandular retention cyst. Causes of cervical glandular retention cysts: 1. In the transformation zone of the cervix, when the squamous epithelium replaces the columnar epithelium, the squamous epithelium may block the opening of the glands to form cervical glandular retention cysts. 2. Damage to the surface of the cervix, as well as chronic inflammation on the surface of the cervix, may also cause the opening of the glands to be blocked and form cervical glandular retention cysts. 3.