Talk to Urologist on Intimate Button

Hello, I hope you're well!

When I was 16, I had unprotected sex with a girl and got a painful butt on my penis which then exploded 2-3 days later and gave me a scar that I still have (now, 7 years later, I have nothing and it doesn't hurt).

I'd still like to know if what I had was just a simple button or a sexually transmitted disease?

Thank you very much for your help and your answers