Cervical cysts: Can they be cancerous?

Updated: 2025-01-24

Answer Section

Cervical cysts aren't cancer. They're sacs that grow in the canal that connects the uterus and vagina, called the cervix. The most common type of cervical cyst is a nabothian cyst. This cyst forms when regular tissue on the outer part of the cervix grows over the mucus-making tissue of the inner part of the cervix. When mucus, fluid or tissue becomes trapped, a cyst forms.

Nabothian cysts are so common that healthcare professionals think of them as a typical feature of the cervix in adults. Your healthcare professional may find one by chance during a pelvic exam or a pelvic ultrasound. In general, cervical cysts don't cause symptoms and don't need treatment.

Your healthcare professional may collect a tissue sample called a biopsy for lab testing if a cervical cyst looks concerning. A cyst biopsy also may be done if you have unusual vaginal bleeding, pelvic pain or pain during sex.