Because the symptoms and symptoms of Colorectal cancer may be the same as other diseases or health conditions, especially pregnancy symptoms, you should regularly receive A health check to confirm your health status or whether you have cancer. If you are diagnosed with colorectal cancer during pregnancy, be sure to have a health check as it may affect embryonic development. So, how will your doctor diagnose whether you have colorectal cancer?

Your doctor uses a number of tests to diagnose whether you have colorectal cancer and whether you have metastatic colorectal cancer. There are methods that help physicians assess which treatment is best and most effective for patients. But sometimes it is unlikely to try all the methods, so you can still choose other methods for diagnosis. Biopsy, for example, is the most reliable way to test for a wide range of cancers, but if it is not possible, your doctor may suggest or choose other ways to help you.

Of course, not all diagnostic methods are suitable for everyone, so physicians will take into account their individual circumstances and choose the one that best suits you.

Symptoms and Symptoms
Age and physical condition
Types of cancer that may be affected
Previous Diagnostic Results

First, your doctor will ask you for a health check and then ask your family history. Next, your doctor will perform a colorectal cancer screening to diagnose whether you have colorectal cancer.

Screening tests can be used to check patients for polyps or cancer. Screening can detect cancer before the tumor is large enough to cause symptoms. Early detection makes cancer treatment more effective, which is why screening is so important. Here are some of the types of colorectal cancer screening that your doctor may recommend:


With colonoscopy, doctors can view the entire rectum and colon interior. These specialists specialize in colonoscopy. If your doctor finds out that you have colorectal cancer, he will perform a complete diagnosis to pinpoint the location and spread of the cancer cells, but requires surgery to remove the tumor before a complete diagnosis can be performed.


During the slicing examination, the doctor takes a small piece of tissue and places it under a microscope. Although other tests can also predict the presence of cancer cells, only sliced tests can accurately diagnose whether a patient is suffering from colorectal cancer.

Physicians can also perform a sliced examination at the same time as colonoscopy. Alternatively, a slice can be performed by any tissue removed during the operation. Physicians sometimes perform needle puncture slicing by computed tomography scan (CT or CAT) or ultrasound and Needle biopsy, the tissue of the tumor is acquired by the needle that pierces into the tumor.

Blood test

Colorectal cancer often causes colorectal or colorectal bleeding, so patients with colorectal cancer may have symptoms of anemia. Red blood cells test is part of a complete blood test, which also allows you to check if a patient has bleeding. A blood test measures carcinoembryonic antigen (CEA), cancer embryonic antigen is a protein, and the higher the antigen value of cancer embryo antigen represents Cancer may have spread to other parts of the body.

Computed tomography uses an X-ray machine to illuminate 3D images inside the body. The computer can make these images into a detailed cross-sectional perspective that can show anomalies or tumors in the body and measure the size of the tumor. Sometimes, to give a clearer and more detailed image, the patient will first be injected or taken with a developing agent (a special dye). The development agent can be injected into the patient’s vein or taken as a pill. Usually computed tomography is performed before surgery. Patients with colorectal cancer can check the spread of cancer in different organs (e.g. lung, liver, etc.).

Depending on your symptoms and condition, your doctor will provide the most appropriate way of examination. Your only responsibility is to consult a doctor as soon as possible if you feel unwell or have any concerns about your physical symptoms. It is important to remember that the more detailed the examination is done, the better the treatment will be.