Since they say hpv can clear most people affected...i am young with a steong immune system why was the virus not fought off?

Many possibilities: Several host and environmental factors contribute to enhance the probability of hpv persistence. Immune impairment (whether you appreciate it or not), hla status, viral load, intratypic viral diversity (which helps the virus escape immunologic surveillance), presence of multiple types of hpv, or other sexually transmitted infections may also play a role.

HPV: Viruses are very difficult to clear. Many, such as hpv, lay dormant in the nerve cells of our body. Then something triggers their re-activation. You will always have positive antibodies to hpv since you have been exposed.

Confused ??: The primary infection of any of the dozens of HPV strains can clear in most people because their immune system does fight it, but the germ is not gone, it just moves into hibernation. That strain may never reactivate, but it may. Those strains associated with cervical cancer can wait decades before eventually triggering pre-cancerous changes.