Ovarian cancer is a cancerous growth arising from the ovary. Symptoms are frequently very subtle early on and may include: bloating, pelvic pain, difficulty eating and frequent urination, and are easily confused with other illnesses.

Most (more than 90%) ovarian cancers are classified as "epithelial" and are believed to arise from the surface (epithelium) of the ovary. However, some evidence suggests that the fallopian tube could also be the source of some ovarian cancers. Since the ovaries and tubes are closely related to each other, it is thought that these fallopian cancer cells can mimic ovarian cancer. Other types may arise from the egg cells (germ cell tumor) or supporting cells. These cancers are grouped into the category of gynecologic cancer.

Signs and symptoms of ovarian cancer are frequently absent early on and when they exist they may be subtle. In most cases, the symptoms persist for several months before being recognized and diagnosed. Most women with ovarian cancer report one or more symptoms such as abdominal pain or discomfort, an abdominal mass, bloating, back pain, urinary urgency, constipation, tiredness and a range of other non-specific symptoms, as well as more specific symptoms such as pelvic pain, abnormal vaginal bleeding or involuntary weight loss. There can be a build-up of fluid (ascites) in the abdominal cavity.

Kathleen Doyle "Kathy" Bates (born June 28, 1948) is an American actress and film director. After appearing in several minor roles in film and television during the 1970s and the 1980s, Bates rose to prominence with her performance in Misery (1990), for which she won both the Academy Award for Best Actress and a Golden Globe. She followed this with major roles in Fried Green Tomatoes (1991) and Dolores Claiborne (1995), before playing a featured role as Margaret "Molly" Brown in Titanic (1997). During this time, she began her directing career, primarily in television.

Bates received a Tony Award nomination for her 1983 performance in the Broadway play 'night, Mother. She won a Screen Actors Guild Award for her performance in Primary Colors (1998), for which she also received an Academy Award nomination for Best Supporting Actress. She was also nominated for an Academy Award for Best Supporting Actress for About Schmidt (2002). Her television work has resulted in nine Emmy Award nominations. Diagnosed with ovarian cancer in 2003, Bates has stated that she has made a full recovery.