Women with more severe cases of prolonged and continuous periods may want to consider pharmaceutical options. In cases of hormonal imbalance, most doctors prescribe oral contraception or any hormonal therapy to regulate the menstrual cycle and balance your hormone levels.
The bone that you sit on is also known as the sits bones. The  scientific name is the ischium which is a large swelling  posteriorly on the superior ramus of the ischium.
During the Mud Pack story arc where Basil Karlo works with the other Clayfaces Preston Payne and Sondra Fuller, he later injects himself with a compound made from their DNA, which gives him the ability to shapeshift, and declares himself the Ultimate Clayface.