A ring bump on my shaft

Hello. I have this problem for about 2 weeks. I have this bump on my shaft, under my penis head, it becomes very firm when I get an erection. This problem disturbs me only when I get full erection as it can be painful to masturbate/reach climax. It makes me very worry. What is it? What should I do? How do I get rid of it?

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I have the same problem but I have had it for years and still have no idea what it is.

Ron & Liam, the only people who can give you the best explanation are Urologists. Either go direct to a Specialist Sexual Health Service, or get a referral from your regular Doctor / GP / Family Doctor …