Phimosis - Phimosis, also known as when the foreskin is too tight to be pulled back over the head of the penis, is associated with a 11 to 16-fold risk of penile cancer due to associated chronic infection.
Lichen sclerosis - Lichen sclerosis, also known as chronic inflammatory skin disorder, is a risk factor for the development of penile cancer.
HPV infection - Penile cancer is more common in areas of the world that have a high prevalence of human papillomavirus (HPV) infection.
Multiple sexual partners and early age of first intercourse - This is associated with a 3 – 5 fold increased risk of penile cancer.
Smoking - Cigarette smoking is associated with a 5 fold increased risk of penile cancer compare to non-smokers.