Just to clarify, I don't have a UTI or STD and I'm not allergic to anything. But when I'm on my period my urethra becomes irritated I was thinking maybe it could just be the blood irritating it. Because it's not when I pee that it hurts and isn't triggered by sex or anything. Tried googling it but I keep getting told about UTI's and I know for a fact it's not. And the pain isn't even that bad at all it's just a bit annoying and doesn't last Very long at all. My urethra just feels aggravated. Any ideas? Is it just the menstrual blood being a pain?