When to Stop Ordering Pap Smears
Discontinue cervical cancer screening at age 65 if the patient has adequate prior negative screening (3 consecutive negative Pap tests OR 2 consecutive negative HPV tests OR 2 consecutive negative cotests within the past 10 years, with the most recent test within the past 5 years) and no history of high-grade precancerous lesions (CIN2+) or cervical cancer. 1, 2, 3
Standard Cessation Criteria at Age 65
You can safely stop screening when ALL of the following are met:
- Age ≥65 years 1
- Adequate prior negative screening documented: Either 3 consecutive negative Pap tests OR 2 consecutive negative HPV tests OR 2 consecutive negative cotests within the past 10 years, with the most recent test occurring within the past 5 years 1, 2, 3
- No history of CIN2, CIN3, adenocarcinoma in situ, or cervical cancer in the past 25 years 1, 4
- No current high-risk conditions (see below) 2, 5
This recommendation comes from consensus among the USPSTF, American Cancer Society, ACOG, and other major guideline organizations. 1, 3
Critical Exceptions: Continue Screening Beyond Age 65
Never stop screening at age 65 in these situations:
History of High-Grade Lesions
- Continue screening for at least 20-25 years after treatment for CIN2, CIN3, or adenocarcinoma in situ, even if this extends screening well past age 65 1, 4, 5
- This extended surveillance is necessary because these patients remain at elevated risk for decades after treatment 4, 5
Inadequate Prior Screening Documentation
- If you cannot document adequate prior negative screening, continue screening until cessation criteria are met 1, 2, 5
- This is particularly important for women with limited healthcare access, minority women, and immigrants from countries without screening programs 2, 5
- Approximately 28-64% of women age 65+ have never had a Pap smear or have not had one within 3 years 2
- Verbal patient report alone is insufficient—you must verify through medical records 5
High-Risk Medical Conditions
Continue screening regardless of age if the patient has: 2, 5
- HIV infection or immunosuppression (transplant recipients, chronic immunosuppressant therapy)
- In utero diethylstilbestrol (DES) exposure
- History of cervical cancer
Never-Screened Women
- For women who have never been screened, perform at least 2 negative tests one year apart, regardless of age 2
- Unscreened women have 3-4 times the incidence of cervical cancer compared to those with at least one prior normal Pap 2
- 42% of women ≥65 years diagnosed with cervical cancer had never been screened 5
When to Stop Screening Before Age 65
Stop screening at any age if the patient has had a total hysterectomy with removal of the cervix for benign reasons (not for high-grade lesions or cancer) 1, 3
- Confirm through surgical records or direct examination that the cervix was removed 1
- This does NOT apply if hysterectomy was performed for CIN2+, adenocarcinoma in situ, or cervical cancer—these patients need continued vaginal cuff cytology for 20-25 years 5
Stop screening at any age if life expectancy is severely limited 1
Common Pitfalls to Avoid
- Don't stop at age 65 without verifying adequate prior screening history through documentation 5—approximately 18.4% of women aged 61-65 are not up to date with screening 6
- Don't discontinue screening in women with prior CIN2+ until 20-25 years have elapsed since treatment, regardless of current age 4, 5
- Don't screen women who had hysterectomy with cervix removal for benign disease—this provides no benefit and represents overutilization 5, 3
- Don't restart screening after cessation, even if the patient reports a new sexual partner 2
Evidence Supporting Age 65 Cessation
The rationale for stopping at age 65 with adequate prior screening is compelling:
- Among adequately screened women, the 20-year absolute risk of cervical cancer is only 8 per 10,000, compared to 49 per 10,000 in unscreened women—an 84% risk reduction 5
- In well-screened women older than 65, CIN2+ prevalence is low and cervical cancer is rare 2
- Given the extended natural history of HPV-related disease, incident HPV infections and newly detected CIN3 after age 65 are unlikely to progress to invasive cancer within the patient's remaining lifespan 2
- Modeling studies show that for regularly screened women, the ratio of colposcopies to life-years gained becomes very large beyond age 65, indicating screening becomes inefficient 2
However, approximately 20% of new cervical cancer cases are diagnosed in women ≥65 years, accounting for 25% of all cervical cancer deaths annually—but these occur predominantly in unscreened or underscreened women, not those with adequate prior screening 5