Can a blood test detect cancer

Blood test can help detect cancer, but can not be diagnosed.

Blood test is generally through the way of blood test, check the tumor markers in the blood, through the tumor marker index, so as to determine whether there is no cancer in the patient's body. However, the increase of tumor markers may be related to endocrine disorders, inflammation, polyps, benign tumors, cancer and other factors, which cover a wide range, usually can not be diagnosed with cancer.

To determine whether cancer is diagnosed, it needs to be further examined by B-ultrasound, X-ray, MRI, tissue biopsy, etc.