the players are required to wear a rugby shirt (jersey), cleats aka "boots", and rugby shorts. Rugby shorts are made of a thick cotton. There is almost no protective gear worn. Most players choose to wear a mouthguard and some opt for a scrum cap, thin shoulder pads, and shin guards.
menstruation happens because each month the body releases an egg. Hence why when youre pregnant you dont experience menstruation, because the egg is fertilized so will not be released