What are these marks or lines across my head? Are they harmless? What should I do?

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also are fordyce spots contagious?

in most cases its common for the skin to look like that and no fordyce spots are not contagious ?? they are oil glands under the skin and are harmless they help keep your skin from drying out

what u need to do is think about what u are applying to the penis such as soaps shower products when washing its best to wash with just water and not apply soap down there at all do u masturbate frequently do u use a lubricant thats water based or are u just dry masturbating ?

Dry mastrubation

u need to not do that

Kim, what about the shaft? Do you see those tiny bumps? Is that also good or bad?

do they go away after a period of time?

mhmmm

i went to bed as was very later here those spots are fordyce spots on the shaft and they are normal nothing wrong with you