Normal perineum anatomy

Hi everyone. I have a question about the female anatmoy that I feel silly asking. I have no where else to ask this though.

I was wondering if its normal to feel a lump/bulge on the perineum. I feel this on my perineum I guess. It's closest to the anus though. Right before it. I was looking at diagrams online of those parts on a woman standing sideways (a medical drawing) and it looked like it could be part of the normal anatomy. Idk. I mean I don't know why I felt down there in the first place. I never have before so I don't know if I've always had it. I'm pretty worried.

I don't drink much water and my stool is hard. When I do drink lots of water it becomes pretty normal but I haven't kept up on it. Is this normal anatomy or what? Thank you so much. I am 19 years old.

[J. Kyle Mathews, MD, DVM]

Your description suggest bulging of perineum when you are constipated.  This can develop into a problem and you should avoid constipation by proper hydration.  It would be unlikely that you have developed a rectocele or perineocele at you age but it is possible.  A gynecological exam would be able to tell.  J. Kyle Mathews, MD

[ellerina9]

Oh I'd like to add that the lump or whatever it is, is not visible. It's only something I can feel. Especially when standing