Grooming Etiquette

I have an upcoming appointment with a Pelvic Floor physical therapist.

One thing I don't want to be nervous about is my appearance. I am on the harrier side and would like to get a sense with regards what the minimum grooming standards are.

I am aware that physical therapists are professionals (have seen it all, etc.) and although, I wouldn't shave, I don't want to gross them out. That's all.

Feel free to answer it from the other direction if that's easier: Appearance wise, what (besides not showering prior to the appointment) would gross out the physical therapist?

Thanks in advance.

P.S. I am a male, just in case that big, blue oval thing didn't give it away...:)