The story of our pelvis is a combination of what we learn from our families, friends and media, the actions of others, and our physical health. Messages about our menstural cycle and sexuality are especially important. Sexual assult is so common in American society, I can't help but wonder the cumulative effects. Naturally if part of the body has been injured or hurt, there is a natural guarding. After years of guarding, the muscles shorten and become tense. Our pelvic floor muscles work in tandem with other muscles groups. Tightness in one area can affect the entire system.