The United States Preventative Services Task Force (USPSTF) does not recommend screening (ultrasound and CA125) for average risk women. As such, these tests are not recommended for the general population of women (ovarian cancer risk 1.4% in lifetime). This is because in average risk women, these tests have not yet been shown to detect ovarian cancer at early stages. However, in those women at high risk of ovarian cancer development (BRCA, family history of ovarian cancer), the National Comprehensive Cancer Network (NCCN) recommends every 6 month ultrasound and CA125 until a woman is ready for risk reducing surgery to remove her ovaries and tubes.