It is important that patients have proper follow-up care following treatment for cancer of the fallopian tubes. These check-ups will generally involve a physical examination and a laboratory blood test called a CA125 assay. Often the CA125 level in a patient’s blood is high before treatment and falls during surgery and chemotherapy. If the CA125 level begins to rise again, it may be an indicator that the cancer has recurred. However, there may be other reasons, unrelated to cancer, for the CA125 level to rise.