Belly button rings today for the most part are considered necessary accessory to many as the length of shirts and blouses go up and the hip line goes down. The belly for many will look bare if it does not have anything to show on it except the bare navel, and so the belly button ring found its route to popularity
Belly Button Rings is a modern invention and has never been recorded in primitive cultures; however the navel has long been recognised as an erogenous zone, because of the difference between men's and women's stomachs.