This leaflet will give you information about the CA125 blood test. You may be feeling unwell or perhaps you have spoken to your GP about symptoms. To help find out what is wrong your GP has suggested that you have a CA125 blood test. Your GP may advise you not to have the test immediately before or during your period as it can interfere with the result. If you have further questions after reading this information you should speak to your GP.
This is a companion discussion topic for the original article at https://patient.info/news-and-features/what-is-a-ca125-blood-test