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Can STIs increase your risk of cervical cancer?

by | Oct 24, 2025 | STI Testing

Taking care of your sexual health is vital. It’s not just about preventing infections – it’s about protecting your long-term well-being too. Cervical cancer is one of the few cancers that is largely preventable, yet thousands of women across the UK are still diagnosed every year. What many don’t realise is that certain STIs are a significant, yet often overlooked, contributing factor. Understanding this link and taking simple steps, like regular STI testing, can make all the difference.

So, how exactly are STIs linked to cervical cancer?

The link between STIs and cervical cancer

Cervical cancer is most common in women aged 30-35, though it can occur at any age. Each year, 3,000 women in the UK are diagnosed with the condition.

Human papillomavirus (HPV) is the main cause of cervical cancer. It is a group of common viruses, spread through sexual contact. As with many STIs, HPV doesn’t often present any symptoms. In most cases, the body clears the virus naturally, however, when it persists, it can cause changes in cervical cells, so medical attention is advisable.

HPV can be contracted through vaginal, anal or oral sex, skin-to-skin contact of the genital area or by sharing sex toys. Therefore, practising safe sex and getting vaccinated are the most effective ways to reduce the risk of contracting HPV.

It is also important to understand that the risk of contracting or sustaining HPV can be increased by other STIs. They do this by creating a more “welcoming environment” for HPV to thrive – over time, a long-lasting HPV infection can lead to abnormal cell changes and, in some cases, to cervical cancer.

Which STIs can increase the risk of HPV?

Research indicates that having certain STIs makes an HPV infection more likely or more difficult for the body to clear. These include:

  • Chlamydia – As one of the most common STIs, it can cause cervical inflammation and abnormal cell growth. These cells are a sign that the body is struggling to clear the infection and is creating an environment where HPV is likely to persist.
  • Gonorrhoea – Leaving this STI untreated can accelerate the development of cell abnormalities in the cervix that are caused by HPV – particularly in cervical lesions.
  • Trichomoniasis – This STI is caused by the parasite Trichomonas vaginalis (TV) and can significantly increase the risk of contracting HPV. Studies have found that women with TV are up to 79% more likely to also have HPV.

Note: having HPV does not necessarily mean that you will develop cervical cancer, but it does increase the risk.

The importance of regular STI testing

Many STIs don’t cause noticeable symptoms, and you can carry an infection for months or even years without realising – which is why you can’t just rely on how you feel. Regular STI testing is critical to protect your health and helps prevent spreading infections to others.

The good news is that 99.8% of cervical cancer cases are preventable. By detecting and treating STIs early, we reduce the likelihood that an environment where HPV can develop and grow will occur and prevent it from leading to something more serious.

The best prevention is consistent condom use and regular testing between sexual partners or at least once a year. If you test positive for an STI, you can seek treatment from your GP or local sexual health clinic.

Additional steps to protect yourself

Alongside STI testing, cervical screening plays a vital role in preventing cervical cancer. Screening doesn’t test for cancer itself – instead, it looks for HPV and abnormalities in cervical cells that could develop into cancer if left untreated. Women aged 25-64 in the UK are invited for regular cervical screening. When you are invited for your screening appointment, it is crucial that you prioritise your health and attend.

Additionally, the HPV vaccine is offered to teenagers to protect against the strains of HPV most likely to cause cervical cancer. If you weren’t vaccinated at school, it may still be possible to get it through your GP or private providers.

Combining the HPV vaccine, cervical screening and regular STI testing offers the best protection.

Stay proactive. Get tested with NorthGene™

At NorthGene™, we believe the importance of regular STI testing cannot be overstated. Sexual health is an essential part of our overall health and well-being, which is why we provide fast, discreet and confidential at-home STI testing – making it easier to take control of your health.

Our discreet STI tests detect four of the most common STIs: Chlamydia, Gonorrhoea, Mycoplasma genitalium and Trichomoniasis. By staying proactive and informed, you can protect yourself and those you care about. Even though these particular STIs don’t directly cause cervical cancer, knowing your status supports early detection, peace of mind and reduces the risk of HPV infection and progression.

Learn more about STI testing with NorthGene™ here or contact our friendly team today on 0191 233 1414.

Tagged: STI Testing

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