People w cert risks. There isn't one type of person who gets anal cancer. However, there are certain risk features that have been associated with a higher risk of possibly developing anal cancer. These include: having hpv infection, your number of lifetime sexual partners, genital warts, cigarette smoking, receptive anal intercourse, and having hiv.
See below. The commonest cause is papilloma virus infection, sexually transmitted. Read a little on this at a health web site.