u can trim some or u can also shave all depending on the one u are comfortable with.
it is a way of healthy hygiene by keeping the surroundings of the pubic area clean, if u,v gone thru a surgery u will know that doctors will always require u to be clean shaven b4 the commence operations
I dont know if there are health implications to shaving totally, but i do it sometimes. but you and I know that the discomfort level is out of this world! So its more advisable to do a very low haircut [lol] instead of gorimapa or afari!