is sex during mens period causes infertility to man?

[poti_aroha]

Hi Doc! can u pls. clear my mind about what i have heard that sex while ur still having ur menstruation can cause infertility for ur partner?

thanks.

[eyedoc]

No truth to that. No scientific basis whatsoever.

[poti_aroha]

Thanks doc for the immediate reply. Just dont understand until now why is it my friend's man think that way...:-)