Ovarian cancer and endometriosis, when tissue that normally lines the uterus grows outside, may have the same symptoms which include constipation, which is often a sign your thyroid isn’t working.
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But this type of cancer is common in older women after menopause, Dr. Lee says. Other symptoms include infertility, pelvic pain and irregular menstrual cycles. These often overlap, but there presence of a cyst can mean cancer, she adds.
See: 6 Cancer Myths That You Should Ignore