Recently I noticed the tip of my penis (at the point where pee and sperm comes out) started wrinkling. It doesn't itch often just a little and I don't think this itching has anything to do with the wrinkle as it itches once in a blue moon, although it seems the urethra(this should be the pipe/gland that urine comes from)close to the point of exit itches a little. now it seems the slit at the tip of my penis is opening up a bit. It has been a bother to me and i fear it might grow into something bad, If it helps i'm just recovering from my brain on porn and excessive masturbation. Pleasewhat do i do to keep my penis healthy