2-3 days ago I noticed a small bump on the shaft of my penis then as time went on it got bigger and now at the top and center of it it is dark red becasueof blood. It really hurts if I touch it. I really need to know what it is because I am starting to get really worried.



Thank you very much for all your help!

Please don't post pictures of your penis online. The photo you posted has been removed.

You need to see a doctor about this. We cannot diagnose over the internet. Never trust your reproductive health to strangers on the internet.