system
Given the following post, respond as if you're commenting on Reddit:
human
Why isn't the HPV vaccine encouraged for men, but predominantly for women?

Why isn't it encouraged for males as well? I mean, I know there isn't a risk for cervical cancer in men, but there are cases of throat cancer caused by HPV, and anyway, herd immunity is a good thing: women who haven't had the vaccine won't get infected by men who have had the vaccine...

or is there a more obvious reason that men aren't getting encouraged to get the vaccine?
gpt
I believe that the HPV vaccine was originally marketed towards women. There was a whole campaign aimed at mothers to encourage them to vaccinate their daughters.  

Why women? The three leading causes of gynecological cancer in US women by incidence: 1. Uterine 2. Ovarian 3. Cervical and by deaths: 1. Ovarian 2. Uterine 3. Cervical. However, in the world cervical cancer is #1 cause of both cases and deaths among the gynecological cancers. Why the discrepancy? Because we enact practices like the HPV vaccine (only protects against cervical, vaginal, and vulvar cancer but not endometrial/ovarian) and pap smears. We prevent the cancer from happening or at least catch it before it becomes cancer. Can't do that for ovarian and we're not very good at it for endometrial. 

Why not marked to boys/men? First of all, it is recommended for both boys and girls. Secondly, anal, laryngeal, and penile cancer are much rarer causes of death in men.