CA125 (Female) Test

CA125 (Female)

This test measures the amount of a protein called CA-125 (cancer antigen 125) in the blood. CA-125 levels are high in many women with ovarian cancer. The ovaries are a pair of female reproductive glands that store ova (eggs) and make female hormones. Ovarian cancer happens when there is uncontrolled cell growth in a woman's ovary.