1. The document discusses the menstrual cycle and abnormalities including dysmenorrhea. It describes the four phases of the menstrual cycle and hormonal control.
2. Abnormalities like primary and secondary dysmenorrhea are explained. Physical therapy modalities for primary dysmenorrhea including TENS, pulsed magnetic field therapy, and low level laser therapy are outlined.
3. Studies show these physical therapy modalities can help relieve pain and symptoms of primary dysmenorrhea.