A Pap smear is a quick screening test that collects cells from your cervix to check for precancerous changes. The entire process, from undressing to getting dressed again, typically takes about 10 to 20 minutes, with the cell collection itself lasting only a minute or two. Here’s what to expect before, during, and after.
How to Prepare Beforehand
For the most accurate results, avoid intercourse, douching, and using any vaginal medicines or spermicidal foams, creams, or jellies for two days before your appointment. These can wash away or obscure the cervical cells your provider needs to examine.
Try not to schedule your Pap smear during your period. It can technically be done while you’re menstruating, but blood on the sample can make it harder for the lab to read. That said, if you’re experiencing unexpected bleeding between periods, don’t delay the test.
What Happens During the Test
You’ll change into a gown and lie back on the exam table with your feet in stirrups. Your provider will ask you to slide toward the edge of the table so they can access the cervix.
First, your provider inserts a speculum into the vagina. This is a smooth, duck-bill-shaped device (plastic or metal) that gently holds the vaginal walls open so the cervix is visible. You’ll feel pressure and a stretching sensation. It’s not sharp pain, but it can be uncomfortable, especially if your muscles tense up. Taking slow, deep breaths and consciously relaxing your legs and abdomen helps.
Once the cervix is in view, your provider may gently swab away any excess mucus or discharge with a cotton swab. Then they use two tools to collect cells. A small plastic spatula is swept around the outer surface of the cervix in a circular motion. Next, a tiny brush, about the diameter of a pencil, is inserted just into the opening of the cervix and rotated gently. This brush collects cells from slightly deeper tissue. You might feel a brief scratching or cramping sensation during this step, but it’s over in seconds.
The collected cells are either rinsed into a small vial of preservative liquid or spread directly onto a glass slide. Then the speculum is removed, and the exam is done.
What Helps With Discomfort
Most people describe a Pap smear as uncomfortable rather than painful, but your experience depends on your anatomy, stress level, and sensitivity. A few things can make a real difference. Breathing slowly and letting your knees fall open (rather than squeezing them together) keeps pelvic muscles relaxed and makes speculum insertion easier. Some clinics offer a heating pad for your abdomen, dimmed lights, or music. You can also bring a support person into the room with you.
If you’re feeling pain during the exam, say so. Your provider can pause, adjust the speculum size, or stop entirely. That’s a normal and reasonable request.
What Happens to the Sample
The most common method today is liquid-based cytology. Your cervical cells are rinsed in a preservative solution, which separates them from blood and mucus that could interfere with the reading. A lab technician then examines the cells under a microscope, looking for anything abnormal in their size, shape, or arrangement. One advantage of the liquid-based method is that the same sample can also be tested for HPV without requiring a second collection.
The older method, called a conventional Pap smear, involves spreading the cells directly onto a slide and fixing them with a preservative spray. Both methods detect precancerous changes at statistically similar rates.
Results typically come back within one to three weeks.
Understanding Your Results
The most common result is “normal,” officially called NILM (negative for intraepithelial lesion or malignancy). This means no concerning cell changes were found.
When results come back abnormal, that doesn’t mean you have cancer. It means some cells looked unusual and need a closer look. The main categories, from least to most concerning:
- ASC-US (atypical squamous cells of undetermined significance): The most common abnormal result. Some cells look slightly off, but the cause isn’t clear. Your provider will typically run an HPV test on the same sample. If the HPV test is negative, the changes are often related to inflammation or low hormone levels and may resolve on their own.
- LSIL (low-grade squamous intraepithelial lesion): Mild cell changes, usually linked to an HPV infection. Many of these clear up without treatment. Your provider will likely schedule additional testing to confirm the changes aren’t progressing.
- HSIL (high-grade squamous intraepithelial lesion): More significant cell changes that carry a higher risk of developing into cancer if left untreated. This result almost always leads to a colposcopy and biopsy.
A single Pap test catches high-grade cell changes about 70% to 80% of the time. That’s why regular screening on schedule matters so much: what one test misses, the next one is likely to catch.
What Happens If Results Are Abnormal
Follow-up depends on the type of abnormality, your previous screening history, your age, and whether HPV is present. For mild changes like ASC-US with a negative HPV test, you may simply repeat the Pap in one to three years. For higher-grade changes, you’ll be asked to come back for a colposcopy.
During a colposcopy, your provider inserts a speculum just like during a Pap smear, then applies a dilute vinegar solution to the cervix. Abnormal cells temporarily turn white when exposed to vinegar, making them visible. Your provider views the cervix through a colposcope, which is essentially a magnifying lens with a bright light that stays outside your body. If suspicious areas are visible, they’ll take a small tissue sample (biopsy) and send it to the lab. The biopsy feels like a sharp pinch or cramp and takes just a few seconds.
Spotting and Aftercare
Some light bleeding or spotting after a Pap smear is completely normal. The cervix has a rich blood supply, and the spatula and brush can cause minor irritation. Any bleeding from the collection itself should stop within a few hours, though light spotting can last up to two days.
If you notice spotting afterward, avoid sex and don’t use tampons for two to three days. If bleeding is heavy, gets worse, or continues beyond three days, contact your provider.
How Often You Need One
Current guidelines from the U.S. Preventive Services Task Force break it down by age:
- Under 21: No screening recommended, regardless of sexual activity.
- Ages 21 to 29: Pap smear every three years.
- Ages 30 to 65: Three options. A Pap smear alone every three years, an HPV test alone every five years, or both tests together (co-testing) every five years.
- Over 65: Screening can stop if you’ve had consistently normal results and aren’t at high risk.
- After hysterectomy: If your cervix was removed and you have no history of high-grade precancerous changes or cervical cancer, screening is no longer needed.