Human papillomavirus, better known as HPV, can be difficult to recognise because it often does not announce its presence. A person can have an HPV infection without noticing anything unusual and may not know they have it. This is one reason understanding the possible signs, as well as the absence of symptoms, matters.
HPV is a group of more than 200 related viruses. Some types can cause genital warts, while others are considered high-risk because persistent infection can contribute to certain cancers. The types that cause genital warts are different from those associated with cancer.
So, what should you look out for? The answer depends on the type of HPV and whether the infection clears or persists.
The earliest sign of HPV may be no sign at all
The most important thing to understand about HPV infection symptoms is that there may be none.
Most HPV infections are asymptomatic, meaning there are no obvious physical changes or discomfort. The body’s immune system clears most infections naturally, often without the person ever knowing that an infection occurred. The WHO notes that most HPV infections cause no symptoms and resolve spontaneously.
This makes HPV different from infections that typically cause immediate symptoms such as pain, itching or fever. Feeling perfectly well does not necessarily mean that HPV is absent.
It also explains why someone may pass HPV to a sexual partner without realising it. HPV can spread through sexual contact, including vaginal, anal and oral sex, as well as intimate skin-to-skin contact. A person does not need to have visible warts or other symptoms to transmit the virus.
Early visible signs: Genital warts
When HPV does cause an obvious physical change, genital warts are among the most recognisable signs.
They may appear as a small bump or as a group of bumps around the genital or anal area. Some are raised, while others may be relatively flat. They can also have a cauliflower-like appearance. Warts may remain unchanged, disappear on their own or increase in size or number.
Low-risk HPV types usually cause genital warts. Importantly, the HPV types that cause genital warts are not the same types that cause cancer. Therefore, finding a genital wart does not mean that a person has an HPV-related cancer.
A healthcare professional can often identify genital warts through a physical examination. If you notice a new or unusual growth in the genital or anal area, it is better to have it checked rather than trying to diagnose it yourself.
What about itching, pain or discharge?
HPV itself does not usually cause general symptoms such as fever, fatigue or widespread illness. Even genital HPV frequently produces no symptoms.
If you experience itching, burning, unusual discharge, bleeding, sores or persistent pain, do not automatically assume that HPV is responsible. These symptoms can have many possible causes, including other infections or health conditions.
This distinction is important because there is no single set of symptoms that can reliably confirm an HPV infection. A healthcare professional can determine whether further examination, testing or screening is appropriate based on the person’s circumstances.
When HPV persists, the picture can change
Most HPV infections do not become long-term problems. However, some infections, particularly those involving high-risk HPV types, can persist.
Persistent high-risk HPV infection can cause changes in cells. These changes may occur without causing noticeable symptoms, which is why screening is so important for people who are eligible for cervical screening.
This is where the idea of “late signs” needs some clarification. HPV itself may still produce no symptoms even when abnormal cells are developing. Symptoms are more likely to become noticeable when HPV-related disease has progressed.
For example, cervical cancer can cause symptoms such as unusual vaginal bleeding, including bleeding after sexual intercourse, abnormal vaginal discharge or pelvic pain. These symptoms are not specific to HPV and can occur for several other reasons, but they should not be ignored.
Other HPV-related cancers can also cause symptoms depending on where they develop. A persistent lump, unexplained sore, unusual growth, difficulty swallowing or persistent symptoms affecting the mouth, throat, genital or anal area warrant medical attention.
The important point is that waiting for symptoms is not a reliable way to detect HPV-related disease. Screening can identify cervical cell changes before symptoms develop.
HPV symptoms can appear long after exposure
Another reason HPV can be confusing is the timing.
A person may develop genital warts or another HPV-related condition long after the original exposure. The CDC notes that symptoms can develop years after sexual contact with someone who had the infection, making it difficult to determine when HPV was acquired or from whom.
Therefore, discovering HPV does not necessarily mean that the infection was acquired recently. It also does not automatically indicate that a partner has been unfaithful.
HPV is extremely common among sexually active people, and many infections go unnoticed because they produce no symptoms.
Do all HPV types cause symptoms?
No. HPV types behave differently.
Some low-risk types can cause genital warts but are not associated with cancer. Certain high-risk types can contribute to cancers involving the cervix, anus, penis, vulva, vagina and parts of the throat.
This is why the appearance of genital warts cannot be used to determine whether someone has a high-risk HPV infection. Conversely, the absence of warts does not mean that a person does not have HPV.
The difference between low-risk and high-risk HPV is therefore important when interpreting symptoms, test results and medical advice.
When should you speak to a doctor?
You should consider speaking to a healthcare professional if you notice:
- New growths, bumps or warts around the genitals or anus
- Unusual sores or lumps
- Persistent or unexplained bleeding
- Unusual vaginal discharge
- Ongoing pelvic pain
- A persistent lump or sore in the mouth or throat
- Any unusual change in an area that does not settle
These signs do not automatically mean HPV. However, they deserve appropriate medical evaluation.
For people who are eligible for cervical screening, following the recommended screening schedule is particularly important because high-risk HPV and precancerous cervical changes may not cause symptoms. Screening helps identify changes before they become more serious.
Conclusion
HPV is often a silent infection. In many cases, there are no early signs at all, and the infection clears without causing health problems. When symptoms do occur, genital warts may be one of the more noticeable signs, particularly with low-risk HPV types.
The more serious concern is persistent infection with high-risk HPV. Even then, there may be no obvious symptoms while abnormal cell changes are developing. This is why regular screening, appropriate medical follow-up and HPV vaccination are important parts of protecting against HPV-related diseases.
Most importantly, do not try to diagnose HPV based on symptoms alone. A visible wart does not tell you which HPV type is present, and having no symptoms does not rule out infection. If something unusual appears or you have concerns about your sexual health, speaking with a qualified healthcare professional is the safest way to understand what is happening.