Gynecologic Oncology A Gynecologic oncologist is an obstetrician/gynecologist who specializes in the diagnosis and treatment of women with cancer of the reproductive organs.Gynecologic oncology is a specialized field of medicine that focuses on cancers of the female reproductive system, including ovarian cancer, uterine cancer, vaginal cancer, cervical cancer, and vulvar cancer. Gynecologic Cancer Gynecologic cancer is any cancer that starts in a woman's reproductive organs. Five main types of cancer affect a woman's reproductive organs are cervical, ovarian, uterine, vaginal and vulvar. As a group, they are referred to as gynecologic cancer. What are Common Symptoms of Gynecologic Cancer? Women with the following symptoms should consult a gynecologic oncologist: A change in bowel or bladder habits A sore in the pelvic area that does not heal Unusual vaginal bleeding or discharge A thickening or lump that either causes pain or can