What effect does circumcision have on penile cancer risk? im circumcised since birth but have had hpvwarts in the past.i know it is rare,but how rare?

Very rare, no worry: Penile cancer is very rare in everyone, regardless of circumcision or past HPV, about 2,000 per year in the US (among 320 million US population). Also, almost all penile cancer is curable when it appears, without radical or disfiguring treatment like amputation. The risk is higher in uncircumcised than those who are circumcised. The HPV types that cause warts and cancer are different.

Reduced risk: Rare. Not many. Anal squamous cell carcinoma is more common and more severe.