Painful Menstrual Periods:  If the pelvic bones are not aligned properly, then the uterus does not tip at its ideal angle to slough off monthly menstrual tissue and excessive pooling and clotting will occur.  If, through specific chiropractic procedures, the pelvic (hip) bones are optimally aligned, it becomes much more easy for the body to rid itself of the menses and consequently there is less cramping and less associated lower back pain.  Utilizing the Pettibon wobble chair assists in maintaining a normal pelvic alignment, ensuring easier menstrual periods.