The normal value of glycoantigen CA125 is generally less than 35,000 U/L. CA125 is a tumor marker, and the level of CA12 in the serum of patients with ovarian cancer and endometrial cancer may be significantly increased, but this is not absolute, not all ovarian cancer and endometrial cancer have elevated CA125, some patients have CA125 within the normal range, so Even if the CA125 value is within the normal range, there may be malignant tumors in human body. Even if the CA125 value is within the normal range, there may be malignant tumors in the body. At present, we mainly rely on ultrasound, CT, MRI and other imaging examinations to make preliminary judgments and pathological results to confirm whether there are malignant tumors in the body.