Ovarian cancer
Last update
In 2025, 553 women in Norway were diagnosed with ovarian cancer. The incidence has decreased in recent years for women between the ages of 50 and 69, and the mortality rate has dropped for all age groups over the past 40 years.
About ovarian cancer
The incidence of ovarian, fallopian tube, and peritoneal cancer (collectively referred to as ovarian cancer) has shown a decline in recent years for women between the ages of 50 and 69, but has remained stable in the age group over 70 years.
Mortality has declined over the past 40 years for all age groups. Borderline tumours more often affect younger women (median age 55 years), while ovarian cancer affects older women to a greater extent (median age 66 years). The majority of women have had symptoms before going to a doctor (81 per cent of women in 2022).
Cancer of the surface layer of the ovaries is often detected late in the disease course because the symptoms are diffuse, and the disease is thus difficult to detect. 70 per cent of women have metastasis at the time of diagnosis. The degree of spread is important for the treatment that can be offered and also for the patient's prognosis.
Key figures - ovarian cancer 2025 (includes ovarian, fallopian tube and peritoneal cancer)
New cases
553
Rates - number of cases per 100,000
19.0
5-year relative survival (2021-2025)
48.2%
Cancer survivors
5,369 people as of 31.12.2025
Deaths
331
Cumulative risk of developing ovarian cancer up to age 80 (2021-2025)
1.5%
The figures are taken from Cancer in Norway 2025.
For more statistics, see the Cancer Registry's statistics bank.
Questions about cancer
The Cancer Registry of Norway is a research institution. Our professionals therefore do not answer questions about diagnosis, assessment, treatment and follow-up from patients or their relatives.
Inquiries about this information should be directed to your general practitioner, treating institution, or the Norwegian Cancer Society's advisory service at phone: +47 21 49 49 21.