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.
Below the sacrum is the coccyx (os coccygis). Also known as the tailbone, the coccyx consists of 3-5 small bones that are often fused. The sacrum and coccyx are located between the left and right os coxae (= hips bones) and form the posterior portion of the bony pelvis (= os coxae, sacrum, and coccyx bones).elow the sacrum is the coccyx (os coccygis). Also known as the tailbone, the coccyx consists of 3-5 small bones that are often fused. The sacrum and coccyx are located between the left and right os coxae (= hips bones) and form the posterior portion of the bony pelvis (= os coxae, sacrum, and coccyx bones).