Hi there,

I recently (last 4 or so days) have been experiencing a burning type sensation on the inside of my penis when I urinate, sometimes its worse than other times, Id describe the sensation as a mild pain,

What can cause this?

I have been with 2 sexual partners within the last 2 months, both say they have been checked for STD's and are clear, although I cannot fully believe what they might say as gospel I do believe them so Im trying to rule out that possibility,
any suggestions?

Thanks docs.