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.
Types of Bones. There are four major types of bones. They are: long bones, short bones, flat bones, and irregular bones. The primary differences between the bones are their shape, and material they are made of. The four types are listed below, in more detail, along with a diagram of each showing the primary differences. Long Bones.