A nabothian cyst is a mucus-filled cyst on the surface of the uterine cervix.
Causes, incidence, and risk factors: The cervical canal is lined by glandular cells that normally secrete mucus. These endocervical glands can become covered by squamous epithelium in a process called metaplasia.
These nests of glandular cells (nabothian glands) on the cervix may become filled with secretions. As secretions accumulate, a smooth, rounded lump may form just under the surface of the cervix and become large enough to be seen or felt upon examination.
Each cyst appears as a small, white, pimple-like elevation. They can occur singly or in groups, and they are not a threat to health. The cysts are more common in women of reproductive age, especially those who have already had children.
Symptoms: There are no observable symptoms.
Signs and tests: Pelvic examination reveals a small, smooth, rounded lump (or collection of lumps) on the surface of the cervix. Rarely, a colposcopic examination is necessary to distinguish nabothian cysts from other types of cervical lesions.
Treatment: No treatment is necessary. However, nabothian cysts do not spontaneously clear. They can be easily cured through electrocautery or cryotherapy. Both procedures can be done in the doctor's office.
Expectations (prognosis): This is a benign condition.
Complications: Rarely, cysts may become so numerous or enlarged that the cervix becomes clinically enlarged.
Calling your health care provider: This condition is usually discovered during a routine pelvic examination.
Prevention: There is no known prevention.