Most women need a Pap smear every 3 years, but the exact schedule depends on your age and which type of test you choose. Women aged 21 to 29 should get a Pap test every 3 years. Starting at 30, you can space screening out to every 5 years if you switch to an HPV test or a combined Pap-plus-HPV test. After 65, most women can stop screening entirely.
Screening by Age Group
Guidelines from the U.S. Preventive Services Task Force break cervical cancer screening into three age brackets, each with its own timeline.
Under 21: No screening is recommended, even if you’re sexually active. Cervical cancer is extremely rare in this age group, and abnormal cell changes in young women almost always resolve on their own.
Ages 21 to 29: Get a Pap test alone every 3 years. HPV testing is not recommended as a standalone option in this age range because HPV infections are very common in younger women and usually clear without causing problems. Testing for HPV at this age would flag too many infections that would never become cancer, leading to unnecessary procedures.
Ages 30 to 65: You have three options. You can continue getting a Pap test alone every 3 years. You can switch to an HPV test alone every 5 years. Or you can get both tests together (called co-testing) every 5 years. All three approaches are considered equally effective. The American Cancer Society leans toward HPV testing every 5 years as the preferred method, starting at age 25 rather than 30, though a Pap test every 3 years remains an acceptable alternative.
Over 65: You can stop screening if you’ve had consistently normal results. The threshold for stopping is either two normal HPV tests in a row or three normal Pap tests in a row. If you’re unsure whether your recent screening history meets that bar, keep getting tested until it does.
Pap Test vs. HPV Test vs. Both
A Pap test (also called cervical cytology) collects cells from your cervix and examines them under a microscope for abnormal changes. An HPV test checks for the specific strains of human papillomavirus most likely to cause cervical cancer. The combined approach, co-testing, runs both checks on the same sample.
The reason HPV testing allows a longer interval between screenings is that it catches the underlying cause of nearly all cervical cancers earlier in the process. If your HPV test is negative, the chance of developing cervical cancer in the next five years is extremely low. A Pap test, by contrast, looks for cell changes that have already started, so it needs to be repeated more frequently to avoid missing something between appointments.
From your perspective as a patient, the experience is identical regardless of which test you’re getting. A clinician uses a small brush to collect cells from your cervix during a brief pelvic exam. The only difference is what happens to that sample in the lab.
When You Need More Frequent Screening
The standard 3- or 5-year intervals assume average risk. Several factors can shorten that timeline significantly.
Abnormal results: If a Pap or HPV test comes back abnormal, you’ll typically be asked to return in 1 year for a repeat test. Current guidelines use a risk-based approach, meaning your follow-up schedule depends on how likely your specific result is to reflect a serious underlying problem. Minor abnormalities paired with a negative HPV test generally call for repeat testing at one year. More concerning results may prompt an immediate colposcopy, a closer examination of the cervix using a magnifying instrument.
HIV or a weakened immune system: Women living with HIV follow a much tighter schedule. Screening starts at age 21 with yearly Pap tests. After three consecutive normal annual results, the interval can be extended to every 3 years. Women with HIV should also continue screening beyond age 65, unlike the general population. Similar recommendations apply to women on long-term immunosuppressive medications, such as those taken after an organ transplant.
History of cervical pre-cancer or cancer: If you’ve been treated for high-grade cervical cell changes or cervical cancer, you’ll need closer surveillance for years afterward, regardless of the standard age-based guidelines.
After a Hysterectomy
Whether you still need Pap smears after a hysterectomy depends on whether your cervix was removed and why the surgery was performed. A total hysterectomy removes both the uterus and cervix. If yours was done for a non-cancerous reason (fibroids, heavy bleeding, endometriosis) and you have no history of cervical pre-cancer, you no longer need Pap smears.
If your cervix was left in place during a partial (supracervical) hysterectomy, you should continue following the standard screening schedule. The same applies if the hysterectomy was performed because of cervical cancer or pre-cancer. In those cases, ongoing screening of the vaginal cuff is important.
Screening During Pregnancy
A Pap smear can be safely performed at any point during pregnancy. If your test is due or overdue when you become pregnant, it’s typically done at your first prenatal visit. Pregnancy does not change the recommended screening intervals. It simply means that if a screening happens to fall during those months, there’s no reason to delay it. The collection technique is slightly modified (a softer brush is used), but the test itself is the same.
Why the Schedule Has Changed
If you remember getting a Pap smear every year, you’re not imagining things. Annual screening was the standard for decades. Research has since shown that cervical cancer develops slowly, typically over 10 to 20 years, which means testing every 3 to 5 years catches pre-cancerous changes with plenty of time to act. More frequent screening didn’t improve cancer detection rates but did lead to more false positives, more biopsies, and more anxiety over cell changes that would have resolved without treatment.
The shift away from annual Paps also reflects the growing role of HPV testing. Because HPV is the cause of virtually all cervical cancers, a negative HPV result provides strong reassurance that the cervix is healthy, allowing safe extension of the screening window to 5 years.