More often than not, there will be no symptoms associated with HPV. However, guys who carry HPV may develop warts at some point. The first sign of warts are growths or lumps in the genital and/or anal area which can appear up to 3-12 months after first getting HPV. The warts are usually painless and will often disappear on their own without treatment. They can appear on the penis, balls, arse and very rarely on the mouth.
Some strains of HPV can also increase your risk of genital or anal cancer, however these strains are different to the ones that can cause warts.