Many years ago I had a wonderful male therapist. I had never had any particular reason to bring up "female" issues. Then one day he said to me, "I've noticed that every month at about the same time you tend to get moody. Do you think maybe you have PMS?"
I know I blushed, but honestly...there's not an emotionally mature man who would balk about a woman mentioning periods and such. Especially a man in a medical-type field.