There are several ways to check for colorectal cancer

We should pay attention to changes in the intestines in our lives. Many people are prone to colorectal cancer, which makes patients very worried. It affects the health of the body and has a lot of impact on the patients' lives. We need to pay attention to the occurrence of colorectal cancer. Don't overeat in daily life and chew slowly. So, how many methods are there to check colorectal cancer?

1. Laboratory tests such as routine blood tests, complete biochemistry (liver and kidney function + serum iron), routine stool tests + fecal occult blood tests, etc., can help understand whether the patient has iron deficiency anemia, liver and kidney function and other basic conditions. Testing for blood tumor marker carcinoembryonic antigen (CEA) can help diagnose tumors. In patients with colorectal cancer, high CEA levels do not necessarily mean that there is distant metastasis; in a small number of patients with metastatic tumors, CEA levels do not increase.
2. Endoscopic examination Colonoscopy is to insert a fiber colonoscope into the ileocecal region at the beginning of the colon to examine the colon and rectal cavities, and perform biopsy and treatment during the examination. Colonoscopy is more accurate than barium enema X-rays, especially for small colon polyps, which can be removed by colonoscopy and confirmed by pathology. Removal of benign polyps can prevent them from turning into colorectal cancer, and cancerous polyps can help clarify the diagnosis and treatment.
3. Biopsy and exfoliative cytology Biopsy is of decisive significance for the diagnosis of colorectal cancer, especially early cancer and polyp cancer, as well as for differential diagnosis of lesions. It can clarify the nature, histological type and malignancy of the tumor, judge the prognosis and guide clinical treatment. Exfoliative cytology has high accuracy, but the sampling is cumbersome, and it is not easy to obtain satisfactory specimens, so it is rarely used in clinical practice.