HPV vaccine

Overview

The HPV vaccine is a vaccine that helps protect against the human papillomavirus (HPV), a common virus that can cause certain cancers and genital warts. The vaccine works by helping your immune system fight off the virus before it can cause disease.

The HPV vaccine is a routine part of childhood immunization programs in many countries, including the UK, where it is offered to both boys and girls.

The vaccine is recommended for all boys and girls aged 11–12, but can be given from age 9 up to age 45. It is especially important for people before they become sexually active, as the vaccine works best when given before exposure to the virus.

Symptoms

Common symptoms

• Most people with HPV have no symptoms and clear the virus on their own.
• Some may develop genital warts within weeks or months of infection.
• Persistent infection with high-risk HPV types can cause precancerous changes in cells, which have no symptoms until they become cancerous.

Symptoms in children

• Children are usually not tested for HPV unless they have a specific health problem.
• HPV infection in children is often symptomless and clears naturally.

Symptoms in older adults

• Older adults who have not cleared an HPV infection may be at higher risk of HPV-related cancers, such as cervical, anal, and throat cancers.
• Symptoms of cancer may include unusual bleeding, pain, or lumps.

Causes

Main causes

• HPV is caused by infection with the human papillomavirus, which is spread through skin-to-skin contact, including during sexual activity.
• There are many types of HPV; some cause genital warts, and others (high-risk types) can lead to cancer.

Risk factors

• Being sexually active, especially with multiple partners, increases the risk of HPV infection.
• A weakened immune system (from illness or medications) makes it harder to clear the virus.
• Not getting the HPV vaccine leaves you vulnerable to infection.

When to see a doctor

See a doctor urgently if:

• If you notice any signs of cancer, such as unexplained bleeding, lumps, or persistent pain, see a doctor quickly.

Book a routine appointment if:

• Talk to your healthcare provider about getting the HPV vaccine if you or your child have not received it.
• Women should attend routine cervical screening (smear tests) as recommended.

Diagnosis

HPV infection is often found through routine screening rather than symptoms. For women, a cervical screening (smear test) can detect cell changes caused by high-risk HPV. A separate test can detect the virus itself. Men are not routinely tested, but genital warts are diagnosed by a visual examination.

Tests that may be done

• Cervical screening (Pap smear or liquid-based cytology) – for women to check for abnormal cells.
• HPV DNA test – often done at the same time as a smear test to identify high-risk HPV types.
• Colposcopy – a closer look at the cervix if cell changes are found.

What to expect at your appointment

If you are diagnosed with HPV, your doctor will discuss next steps. Often, no treatment is needed for the virus itself. If you have abnormal cells, further monitoring or minor procedures may be recommended. The vaccine can still prevent future infections.

Treatment

There is no cure for the HPV virus itself, but many HPV infections go away on their own. Treatment focuses on managing health problems caused by the virus, such as genital warts or precancerous cell changes.

Self-care at home

• If you have genital warts, avoid picking or scratching them, as this can spread them.
• Practice safe sex using condoms to reduce the risk of passing HPV to a partner.
• Attend all recommended screenings and follow-up appointments.

Medical treatments

Medical treatments for genital warts include creams, freezing (cryotherapy), or minor procedures to remove them. For precancerous cell changes on the cervix, treatment may involve removing the abnormal cells using a loop wire (LLETZ) or a cone biopsy. These are simple outpatient procedures. For cancers, treatment will be specific to the cancer type and stage and may include surgery, radiation, or chemotherapy.

When is surgery considered?

Surgery may be needed for advanced precancerous changes or for HPV-related cancers. Your doctor will discuss the best options based on your situation.

Living with this condition

If you have HPV, it is important to maintain regular health check-ups and follow your doctor's advice. Most people with HPV live full, healthy lives. The vaccine can protect against future infections with other HPV types.

Lifestyle tips

• Do not smoke, as smoking makes it harder to clear HPV and increases cancer risk.
• Limit alcohol intake to support a healthy immune system.
• Have open conversations with partners about HPV and sexual health.

Diet and exercise

Eating a balanced diet rich in fruits and vegetables and staying physically active can help support your immune system. There is no special diet for HPV, but a healthy lifestyle is always beneficial.

Mental health and emotional wellbeing

An HPV diagnosis can cause anxiety or stress, especially if it is associated with cancer risk. It is normal to feel worried, but remember that most HPV infections are harmless and go away. Talk to a counsellor or trusted healthcare provider if you are struggling.

Prevention

Yes, HPV infection can be prevented in many ways. The HPV vaccine is the most effective method. Using condoms and limiting the number of sexual partners also reduce risk, but they do not fully prevent HPV.

Vaccines

The HPV vaccine is recommended for all children around age 11–12. It is given as two doses (if started before age 15) or three doses if started later. The vaccine protects against the most common high-risk HPV types that cause cancers and against types that cause genital warts. It is safe and widely used. Ask your healthcare provider about the vaccine schedule in your area.

Screening programmes

Routine cervical screening (smear test) can detect early cell changes caused by HPV, allowing treatment before cancer develops. It is a key preventive measure for women aged 25 to 64 (in the UK). Men are not routinely screened, but they can benefit from vaccination.

Complications

If left untreated

• Persistent infection with high-risk HPV can lead to cervical, anal, vulvar, vaginal, penile, or throat cancer.
• Genital warts can grow larger or spread if not treated, but they are not cancerous.

Long-term outlook

The outlook for HPV infection is very good. Most people clear the virus without any problems. Thanks to the vaccine and screening, rates of HPV-related cancers are falling. Detected early, precancerous changes are almost always treatable. Staying up to date with vaccination and screening gives you the best chance of staying healthy.

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