At least, this is what my mother says: Within a year of having her tubes tied (at 40-42 years of age?) she went into menopause. She tells me that another friend of hers had warned her that that might happen, that "doctors say it doesn't but women say it does," and indeed it did. I get the feeling from talking to her that she wishes that she'd done something else. I have no idea how common this is or whether it would've happened anyway, but it's a possibility that may be worth investigating if you're considering the surgery.