What Is a Gynecologic Oncologist and What Do They Do?

A gynecologic oncologist is a medical subspecialist dedicated to the diagnosis and comprehensive management of cancers affecting the female reproductive system. This physician begins their career as an obstetrician-gynecologist (OB/GYN) and then pursues extensive additional training focused solely on treating reproductive cancers. The specialist’s unique training combines surgical expertise with knowledge of systemic cancer therapies. This allows them to provide integrated care from initial diagnosis through survivorship for patients with complex gynecologic malignancies.

Specialized Training and Credentials

The educational pathway to becoming a gynecologic oncologist is rigorous, beginning with four years of medical school and a four-year residency in Obstetrics and Gynecology. After residency, the physician must enter a specialized fellowship program dedicated to gynecologic oncology, which typically lasts three to four years. This fellowship provides intensive, hands-on training focusing on advanced surgical techniques, chemotherapy administration, and radiation therapy coordination.

The training is structured to provide deep knowledge in the biology and pathology of female reproductive cancers. To practice as a certified subspecialist, the physician must achieve board certification from the American Board of Obstetrics and Gynecology (ABOG). This dual certification covers both Obstetrics and Gynecology and the subspecialty of Gynecologic Oncology, confirming the specialist is qualified to manage these complex conditions.

Cancers of the Female Reproductive Tract

Gynecologic oncologists treat all malignancies that arise in the female reproductive organs, including the five main types: ovarian, uterine, cervical, vulvar, and vaginal cancers. Ovarian cancer often presents with vague symptoms, leading to diagnosis in later stages. The specialist’s expertise is crucial for complex staging and debulking surgery, managing cancers of the ovaries, fallopian tubes, and the abdominal lining (peritoneum).

Uterine cancer, most commonly endometrial cancer, is the most frequently treated gynecologic malignancy and is often detected early due to abnormal vaginal bleeding. The specialist performs the necessary hysterectomy and staging procedures to determine the extent of the disease. Cervical cancer is typically caused by the human papillomavirus (HPV) and is often preceded by pre-cancerous conditions, which the oncologist is trained to diagnose and remove.

The specialist also manages the less common malignancies of the external genitalia, specifically vulvar cancer and vaginal cancer. These cancers can present with symptoms such as skin changes, pain, or abnormal discharge, requiring focused expertise in diagnosis and localized treatment.

Complex Treatment Modalities

A core distinction of the gynecologic oncologist is their combined expertise as both a highly trained surgeon and a medical oncologist for these specific cancers. They perform advanced surgical procedures necessary for cure and staging, such as radical hysterectomy (removing the uterus, cervix, and surrounding tissues). For ovarian cancer, they perform cytoreductive surgery, or debulking, a complex procedure to remove as much visible tumor as possible from the abdominal cavity.

These specialists utilize minimally invasive techniques, including laparoscopy and robotic-assisted surgery, allowing for complex operations through smaller incisions and quicker recovery. Beyond surgery, the gynecologic oncologist administers and manages systemic therapy, including chemotherapy, targeted therapy, and immunotherapy. They are trained in unique delivery methods, such as intraperitoneal chemotherapy, which involves delivering drugs directly into the abdominal cavity to target cancer cells, particularly for ovarian cancer.

Role in Comprehensive Cancer Care

The gynecologic oncologist functions as the central leader of the patient’s cancer care team, coordinating all aspects of treatment from diagnosis. They are usually involved when a general OB/GYN suspects a cancer mass, when a diagnosis is confirmed, or for the management of complex pre-cancerous conditions. The specialist’s role includes the initial staging of the cancer, which determines how far the disease has spread and dictates the subsequent treatment plan.

The specialist regularly presents cases at multidisciplinary tumor boards, collaborating with radiation oncologists, pathologists, and medical oncologists to finalize the most effective treatment strategy. They integrate the three main treatment pillars—surgery, chemotherapy, and radiation—into a seamless care plan. This comprehensive oversight extends to long-term follow-up care, genetic counseling, survivorship planning, and guiding palliative care.