The human papilloma viruses (HPVs) are a group of common infections. They can affect the skin and the moist lining inside parts of the body (mucous membranes). They commonly affect areas such as inside the mouth, throat, genital area or anus.
There are more than 100 types of HPV. Some can cause warts and verrucas. Others (called high-risk HPV) are known to increase the risk of developing different types of cancer.
Most people will have HPV at some point in their life. Usually the virus causes no harm and there are no symptoms, so you may not even know you have it.