Irregular Periods Explained: The Main Reasons Why Your Period Is Out of Whack
Menopause
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Similar to becoming pregnant, menopause occurs when hormone levels in the woman’s body begin to change. Typically, menopause starts when a woman is in her late fifty's, but sometimes irregular periods can occur as early as ten years before menopause begins. As a woman approaches menopause, ovulation becomes infrequent so the menstrual cycle can infrequently come as well. The reason that menopause causes irregular periods is very simple, menopause is the suspension of ovulation. Women are born with only a certain number of eggs, so at this point in life, all of a woman's eggs have been used during menstrual cycles.