Pap Smear

A Pap smear is a quick, routine test performed during a pelvic exam. Your healthcare provider gently collects a small sample of cells from your cervix — the lower part of the uterus that opens into the vagina — using a soft brush or spatula. Those cells are then sent to a laboratory, where they're examined under a microscope to look for changes that could indicate precancerous or cancerous conditions.

The test was developed in the early 20th century by Dr. Georgios Papanicolaou, and it has had a remarkable impact: since Pap testing became widespread, deaths from cervical cancer in the United States have dropped by more than 70 percent. That's because the test catches abnormal cell changes — called dysplasia — that can be treated before they have a chance to become cancer.

Current guidelines generally recommend that women begin Pap testing at age 21 and continue every three years through age 65, though the schedule may vary based on your age, health history, and whether you're also being tested for HPV (the human papillomavirus, which is the most common cause of cervical cancer). If a Pap smear returns an abnormal result, it doesn't automatically mean cancer — it means the cells warrant a closer look, and your doctor will discuss what follow-up steps make sense.

The Pap smear is one of the most effective screening tools in all of medicine — not just for detecting cancer early, but for catching cellular changes that are still completely treatable before cancer even has a chance to form. That makes it genuinely preventive in a way that very few tests can claim.

Keeping up with recommended Pap testing is one of the most straightforward things you can do to protect your health. Many women who develop cervical cancer had not had a Pap test in several years. If you're unsure when your last test was or what schedule is right for you, a conversation with your provider is the best starting point.