produced by body fat, remains constant. This estrogen can become significant enough to prevent the withdrawal bleeding expected from the lack of ovarian produced estrogen and progesterone. In addition, this excess hormone can result in a much thicker uterine lining to shed each month. Therefore, many women with excess weight can find that they miss periods from the lack of hormone withdrawal or have much heavier periods from excess growth of uterine lining to shed.
W. David Stinson, MD