The National Institute for Health and Care Excellence (NICE) is proposing to introduce age limits for ovarian cancer blood tests to improve diagnosis of the disease. Around 7,000 women are diagnosed with ovarian cancer in the UK each year, with only 20% surviving a decade after diagnosis. Ovarian cancer is often diagnosed late because its symptoms—such as abdominal pain and bloating—are vague and overlap with other conditions. The CA125 blood test, which measures the levels of a protein elevated in ovarian cancer, is used for detection. Currently, all women are referred for further testing if their CA125 level reaches 35 IU/ml or more, regardless of age. The new NICE recommendation should replace this universal test with age-differentiated thresholds, as the risk of ovarian cancer changes as women age. The goal of this change is to help general practitioners diagnose the disease earlier and improve treatment outcomes.