Perineum pain or numbness is a very common complaint when the saddle doesn't properly support the rider's weight on the sit-bones. It might be as simple as adjusting the saddle's fore/aft tilt or positioning but it might also not be a suitable saddle for one's particular anatomy. If that's the case it might be necessary to look into a saddle with e.g. a center cut-out or groove to reduce pressure on this region.