What can the ovaries have to do with cancer?

Symptoms:: Symptoms of ovarian cancer: abdominal pressure, fullness, or swelling, pelvic discomfort, persistent indigestion, gas or nausea, changes in bowel habits, like constipation, changes in bladder habits, including a frequent need to urinate, loss of appetite or quickly feeling full, increased abdominal girth or clothes fitting tighter around your waist, persistent lack of energy, low back pain.