PT Question

[VeloVT]

Hi all,
I had a bike fitting yesterday. Too much conflicting information (from several different parties) for me to process and write about right now. But I had it done at a PT office, and they did a brief flexibility assessment before the fitting.

I was told that, although I'm quite symmetrical, I have pretty noticeable internal hip rotator tightness and hip flexor tightness (both are quite consistent between right and left legs). I knew about the hip flexor tightness, but not the rotator tightness. We didn't discuss it because he felt I was enough within the normal enough range that it wouldn't affect the bike fit...

But now I'm wondering, what does this mean? What is it's significance, what causes it, and what can I do to make it better? Is it bad and do I need to worry about it? I googled it and couldn't find anything...

thanks lovely TE PT community!!!