Can you have HPV without knowing?
Yes. Most people with HPV have no symptoms, and many infections clear on their own. A normal-looking genital area therefore cannot tell you whether you have HPV. The virus can also pass through intimate sexual contact when the person carrying it has no visible signs. [1] [4]
That makes a symptom checklist useful for deciding when to get help, but not for ruling out infection.
What might genital warts look like?
Genital warts may appear as small lumps on the penis, scrotum or around the anus. They can be itchy or painless; some grow in clusters with a cauliflower-like appearance. You may see the Chinese name 性器疣 or the familiar term 椰菜花. [2] [3]
If you notice a new growth, arrange a medical appointment. You don’t need to decide whether it looks “enough like” an online picture first. A doctor can examine the area and check what the change means. Don’t try to remove or treat a suspected genital wart yourself. [2]
Do genital warts mean cancer?
Genital warts and HPV-related cancer are different outcomes. The HPV types that usually cause warts differ from the high-risk types linked to cancer. Having warts does not itself mean you have cancer, although a person can carry more than one HPV type at the same time. [3]
Persistent HPV infection can be linked to cancers affecting men, including the penis, anus and the back of the throat. This is a possible consequence, not the expected outcome of every infection. [4]
What can a doctor help with?
If warts are diagnosed, treatment may involve a prescribed cream or a procedure such as freezing or removal. Follow-up matters because warts can return. Treating visible warts is different from having a treatment that reliably clears HPV itself. [2] [3]
Before the appointment, it can help to note when you first noticed the change, whether it has grown or become uncomfortable, and any treatment you have already tried. Ask what follow-up is needed and whether your partner should also be assessed. This article does not recommend a routine HPV test for every man. [3]
Can vaccination treat an existing infection?
HPV vaccination helps prevent infection with the types it covers; it does not clear an existing infection or treat genital warts. If you have a new symptom, get it assessed rather than waiting for vaccination to solve it. Suitability for vaccination is a separate discussion. [1]
Condoms can reduce the chance of HPV transmission, but cannot cover every area of skin that may carry the virus. Ask your doctor about safer sex and any precautions relevant to your situation. [1] [2]
If you’re unsure where to start, speak to your family doctor or a Department of Health social hygiene clinic. The practical next step is an assessment—not a diagnosis from a photograph. [3]
Related reading
For vaccination questions, see our HPV vaccine guide. Funding is covered separately in Is HPV vaccination subsidised for boys in Hong Kong?.