Not long ago, cervical cancer was one of the deadliest cancers for women. But today, women are half as likely to get cervical cancer (and die from it) than they were in the 1970s.
This is largely thanks to advances in cervical cancer screening. Nowadays, doctors can find precancerous cells before they become cancer. They can also test for infections that are known to cause cervical cancer. The result is the ability to prevent cancer before it happens or catch it early when it’s easier to treat.
You have 2 options when it comes to screening: a Pap smear or an HPV test. Here’s what you may want to know about cervical cancer and your screening options.
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What is cervical cancer, and what causes it?
Cervical cancer is most often caused by a virus called the Human Papillomavirus (HPV). HPV is spread through sexual intercourse and intimate skin-to-skin contact. Infected people often have no signs or symptoms, making it very easy to spread the virus. HPV is extremely common — nearly everyone has had it or will get it at some point in their lives.
Most cases of HPV will go away on their own and cause no problem. But some infections can lead to cancer. Besides cervical cancer, HPV can also cause other cancers.
What tests screen for cervical cancer?
There are 2 tests for cervical cancer that can detect and prevent this disease: a Pap smear and an HPV test. While both tests are critical for cervical cancer prevention, they serve different purposes.
- What is a Pap smear? A small sample of cells is taken from your cervix and examined for signs of abnormal, potentially cancerous cells. “A Pap smear helps to detect abnormal cervical cells, which can lead to cervical cancer,” explains Daniel Roshan, M.D. He’s an ob-gyn at Rosh Maternal & Fetal Medicine in New York City.
- What is an HPV test? Doctors have another tool that can detect a potential problem even earlier: HPV tests. “HPV testing is looking for the presence of human papillomavirus in the cervical cells,” says Dr. Roshan. There are hundreds of different types of HPV, but only a handful are known to cause cancer. HPV tests are designed to find the most high-risk strains of HPV, adds Dr. Roshan. “In the absence of high-risk HPV, the risk of cervical cancer is very low,” he says.
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When to get an HPV test vs. a Pap smear
The U.S. Preventative Services Task Force recommends that all women get screened for cervical cancer regularly starting at age 21. But as Dr. Roshan explains, which tests you get and how often will depend on your:
- Age
- Results of previous tests
- Risk factors like personal or family history of cancer
“Your provider will guide you on how often you’ll be screened and the type of screening necessary,” says Dr. Roshan.
Even if you don’t need a cervical cancer screening every year, you’ll still want to see your doctor at least once a year for a well woman exam, advises Dr. Roshan. Your doctor checks many other things during this annual visit. It’s a chance to get a yearly snapshot of your overall health.