Amputation!!!
Actually I've had a burning sensation since 1996... I put up with it until I pissed blood, went to a MD the next day and ran some tests - Came back negative for STDs. He said it was likely a UTI, gave me some meds and sent me on my way.
It went away a few days later.
Funny thing is it started again some time later... It's always been off and on.
I read up on it (online) and it seems other people have this sort of problem and certain fruits cause it.
After reading that I started paying attention to what fruits I consumed. I can't drink apple juice because the next piss I take will burn and it may last for a few days. Sometimes it just feels like I
really have to piss and I'm holding it in but, nothing comes out, (barely anything).
If it's not an STD you will learn to live with it.