Large, dark blood vessels under foreskin

noticed these large blood vessels under foreskin which are red/purple starting to appear, what are they and will they go away? please help.

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Just normal veins.

is there any irritation or pain ?

little bit of pain with pressure

literally just like mine dude might be Penile-Mondor’s-disease which means u either masterbate to frequently or go a bit to hard at or sex