A few raised and also flat non itchy non painful bumps on penis head. non on shaft or balls. groin also itches. no burning sensation or discharge. i work outside for a living so i sweat. could this be jock itch or heat rash?

This is likely: Do get this seen by your physician at your yearly physical. We want to be sure it's not pre-cancer -- this pops up as little red splotches on the glans. I admire and respect you as an outdoor worker -- thanks for what you do. Some talcum / gold bond powder to the area before and after can work minor miracles for heat rashes on a guy.