Dr. Kristina A. Butler, Gynecologic Oncologist, at the Mayo Clinic, shared very important information on ovarian cancer signs, symptoms and its relationship to breast cancer. More than 21,000 women are diagnosed with ovarian cancer each year in the United States, that’s 1 in 78 women. Average age of diagnosis is 63 years old. The causes are poorly defined, but there are very important risk factors for women to know. Learn more.