To help reduce your risk of anal cancer:
Practice safe sex. The best way to lower your risk of anal cancer is to avoid sexual behaviors that might expose you to HPV and HIV infections.
Use condoms to protect against sexually transmitted diseases.
Limit your number of sexual partners.
HPV vaccine. A new vaccine helps guard against some forms of HPV linked to cervical cancer. Doctors hope that this vaccine could also protect against anal and other cancers.
Don't smoke. Avoiding smoking can reduce your risk of developing anal cancer.