I am 31 years old and some days ago i noticed white patches on top of my penis head under the foreskin. They seemed to be stuck on top of the skin and if i rubbed a little i was able to remove them. The skin underneath, after i removed them, looked ok. After a day they reappeared, again i removed it. This was going on for 3-4 days and at the moment i think it stopped appearing.
Is this something i should be worried? I read on the internet about some STDs like HPV that create white patches on penis and i am a little worried.
Can you please advice me on what that is?