Management of Multiple Nabothian Cysts with Abnormal Cervical Appearance
With a normal Pap smear and negative high-risk HPV test, multiple Nabothian cysts require no intervention—reassurance and routine screening are appropriate, even if the cervical appearance seems abnormal on ultrasound.
Understanding Nabothian Cysts
Nabothian cysts are benign mucinous retention cysts that form when cervical mucus accumulates in blocked cervical crypts 1. They are extremely common in women of reproductive age and are completely benign, requiring no treatment in the vast majority of cases 2, 3.
Your Clinical Scenario: Low-Risk Profile
Your combination of findings represents a low-risk scenario:
- Normal Pap smear (NILM) = No cytologic abnormalities
- Negative high-risk HPV = No oncogenic viral infection
- Multiple Nabothian cysts = Benign finding, not precancerous
According to the 2021 CDC/ASCCP guidelines, when both cytology is normal (NILM) and HPV testing is negative, the patient is at very low risk for cervical intraepithelial neoplasia (CIN) 3 or cancer 4.
Recommended Management Algorithm
Immediate Actions:
- No colposcopy needed - The guidelines explicitly state colposcopy can be deferred for low-risk patients 4
- No biopsy required - Nabothian cysts are benign and do not require tissue sampling 1
- Reassure the patient - The "abnormal appearance" on ultrasound is simply the visualization of benign cysts
Follow-up Schedule:
Return to routine cervical cancer screening:
- If using HPV testing or co-testing: repeat in 3 years 4
- If using cytology alone: repeat annually (though co-testing is preferred)
Important Caveats and Pitfalls
When to Worry About Nabothian Cysts:
While most Nabothian cysts are harmless, be alert for these specific scenarios:
Giant cysts (>4 cm) - These rare presentations can mimic adenoma malignum (a malignant mucin-producing carcinoma) on imaging 2, 3, 5. However, your patient already has negative cytology and HPV, making malignancy extremely unlikely.
Symptomatic cysts - If causing pelvic pain, dyspareunia, or mass effect on surrounding organs, consider aspiration or excision 2, 6
Persistent abnormal cytology despite benign-appearing cysts - One case report documented cervical adenocarcinoma initially misdiagnosed as a Nabothian cyst, but this patient had atypical glandular cells and HPV-18 positivity 7. Your patient has neither.
Critical Red Flags That Would Change Management:
You would need colposcopy if:
- History of high-grade lesions (CIN 2/3, HSIL, ASC-H, AGC, or AIS) 4
- Two consecutive HPV-positive tests 4
- Postcoital bleeding 1
- The "abnormal appearance" includes irregular surface contours, friability, or suspicious lesions beyond just cysts
None of these apply to your patient.
The Evidence Behind This Recommendation
The 2019 ASCCP Risk-Based Management Guidelines represent a paradigm shift from managing based on specific test results to managing based on actual risk of CIN 3 4. Your patient's negative co-test (normal Pap + negative HPV) places her in the lowest risk category, with approximately 0.3% risk of CIN 3 over 5 years.
The guidelines explicitly state: "If a patient has a minimally abnormal test result that was preceded by a negative screening HPV test or cotest within the past 5 years, follow-up in 1 year instead of colposcopy is recommended" 4. Your patient doesn't even have a minimally abnormal result—she has completely normal screening tests.
Practical Clinical Approach
Document in the chart:
- Multiple Nabothian cysts visualized on ultrasound (benign finding)
- Normal Pap smear (NILM)
- Negative high-risk HPV
- Low risk for cervical dysplasia/cancer
- Plan: Routine screening in 3 years with HPV testing or co-testing
Patient counseling points:
- Nabothian cysts are like "pimples on the cervix"—completely normal and harmless
- They form when normal cervical glands get blocked
- They do not increase cancer risk
- They do not require treatment unless causing symptoms
- Continue routine screening as recommended
The ultrasound finding of "abnormal appearance" is likely just the radiologist noting the presence of multiple cysts, which can look concerning on imaging but are clinically insignificant when cytology and HPV testing are reassuring 3, 8.