Kunigami is a Shintoist shrine that is specialized in blessing its visitors to cure them or protecting them from hemorrhoids. In the shrine there is a big egg-like rock in a fountain and a statue of a hen. This symbolizes a hen laying a magical rock egg that will cure hemorrhoids. According to the ritual you need to squat and put your butt towards the egg.
If you want to visit the “hemorrhoids temple” you can find it here on Google Maps.