January 2024 — Please be aware that as of December 2023, the screening programme in Northern Ireland has switched to using HPV primary screening. This page is currently undergoing review, but the information below regarding England, Scotland and Wales remains valid.
HPV primary screening is a way of testing the sample of cells taken at your cervical screening (smear test) appointment. It tests for a virus called high-risk human papillomavirus (HPV) that can cause cervical cell changes to develop into cervical cancer.
We also have information about:
Where is HPV primary screening used?
HPV primary screening is used in England, Scotland and Wales. In the future, it will be used in Northern Ireland but the start date is to be confirmed.
What is HPV primary screening?
HPV primary screening is a way of testing the sample of cells taken during cervical screening. A lab tests your sample for a virus called high-risk HPV. High-risk HPV can cause cervical cell changes to develop into cervical cancer over time. If you have high-risk HPV, that same sample will be tested for cell changes.
The next steps are based on your result and tailored to your individual risk. You may:
- be invited back for cervical screening in 1 year
- be invited back for cervical screening in 3 years
- be invited back for cervical screening in 5 years
- be invited for further tests at colposcopy.
Read about cervical screening results >
What happens if I do not have HPV?
If you do not have high-risk HPV, your sample will not be looked at for cell changes. It is very unlikely you will develop cell changes or cervical cancer without having high-risk HPV.
You will be invited for cervical screening in 3 or 5 years, depending on your age and where in the UK you live.
What happens if I have HPV?
If high-risk HPV is found, your sample will be looked at for cell changes. If there are no cell changes, you will be invited back for cervical screening in 1 year. This is to make sure the HPV has cleared.
If high-risk HPV and cell changes are found, you will be invited for further tests at colposcopy. Not all cell changes develop into cervical cancer, but it is important that they are monitored and treated if needed.
HPV primary screening pathways
What are the benefits and risks of HPV primary screening?
The National Screening Committee, which oversees all screening programmes in the UK, recommended the move to HPV primary screening because evidence shows it is a better test:
- HPV primary screening is the best way to find out who is at higher risk of developing cervical cell changes or cervical cancer. Almost all cervical cancers are linked to high-risk HPV. By knowing who has high-risk HPV, we can make sure that we monitor the virus and find any cell changes early, before they potentially develop into cervical cancer.
- HPV primary screening is a more accurate test than cytology. This means it is better at detecting cell changes overall, as well as detecting them earlier.
- HPV primary screening could be done with a self-sample kit in the future. This would mean you could take a swab from your vagina, in the privacy of your home. There is ongoing research to find out whether self-sampling could be offered as part of the NHS national screening programme.
All tests have some risks:
- Like all screening tests, HPV primary screening isn't completely accurate. There is a small chance that your result could be wrong.
What is cytology?
Cytology is now only used in Northern Ireland. It is the study of individual cells in the body. In cervical screening, this means that the cells taken during your appointment are looked at under a microscope for changes.
Read more about cell changes >
No cell changes
If you do not have cell changes, your risk of developing cervical cancer is low. You will be invited back for cervical screening in 3 or 5 years, depending on your age.
Borderline or low-grade cell changes
If you have borderline or low-grade cell changes, the same sample is tested for high-risk HPV. This is called HPV triage.
If you also have high-risk HPV, you will be invited for more tests at colposcopy.
High-grade cell changes
If you have high-grade cell changes, you will be invited for more tests at colposcopy.