HPV vaccine and cervical screening: what you need to know
How HPV relates to cervical cancer
HPV, or human papillomavirus, is a group of common viruses. Some high-risk HPV types are related to higher risk of cervical, vaginal, and vulvar cancers. HPV infection is common, and most infections clear on their own, but persistent high-risk infection can lead to cervical cell changes [1][2].
Cervical health management usually includes two parts:
- HPV vaccination: lowers the risk of infection with certain high-risk HPV types.
- Cervical screening: uses HPV testing and/or Pap testing to find cell changes that could become precancerous.
HPV vaccination is not meaningful only at a very young age
CDC recommends routine HPV vaccination at ages 11-12, and it can start at age 9. Catch-up vaccination is generally recommended through age 26 for people not already vaccinated [1]. For adults ages 27-45, vaccination should be discussed with a clinician based on individual risk, because many people have already been exposed to HPV and benefit varies [1].
Having had sex or having had one HPV type does not mean vaccination has no value. But the vaccine does not treat an existing infection or lesion. The decision is best made with a clinician based on age, vaccination history, partner context, and screening results.
When cervical screening starts
Guidelines differ by country and region. Based on CDC and ACOG information in the United States:
- Cervical cancer screening starts at age 21.
- Ages 21-29 usually use Pap testing.
- Ages 30-65 may use Pap testing, HPV testing, or co-testing, depending on clinician guidance.
Specific screening intervals should follow local medical guidelines and your clinician's advice [2][3].
What FlowHer can and cannot do
FlowHer can help you record periods, abnormal bleeding, discharge changes, pain, and screening reminders. It cannot replace HPV testing, Pap testing, colposcopy, or medical diagnosis.
If you notice bleeding after sex, repeated non-period bleeding, abnormal discharge, pelvic pain, or abnormal screening results, seek medical care promptly.