How much do you know about the diagnosis of colorectal cancer?

What are the diagnostic methods for colorectal cancer? Colorectal cancer is the most common type of malignant tumor. It refers to the malignant lesions of the colon mucosal epithelium caused by various carcinogenic factors such as the environment or genetics. Understanding the diagnostic methods of colorectal cancer can better treat colorectal cancer. Now let the experts introduce the diagnostic methods of colorectal cancer to us in detail.

Diagnosis of colorectal cancer:

1. Stool examination: Although the fecal occult blood test is not specific for the diagnosis of this disease, the method is simple and easy to perform. It can be used as a screening method or can provide clues for early diagnosis.

2. The most definite examination method is colonoscopy, commonly known as colonoscopy, which is divided into fiber colonoscopy and sigmoidoscopy.

3. Rectal and anal digital examination. In China, more than 50% of colorectal cancer occurs in the rectum, and 80% of rectal cancer is in the middle and low positions, which can be detected by rectal and anal digital examination.

4. Barium enema X-ray examination: Patients with lesions in the upper sigmoid colon or higher should undergo X-ray barium enema examination. Ordinary barium enema X-ray examinations are prone to miss small colorectal cancers. It is best to use air-barium double contrast, which can improve the accuracy of radiological diagnosis and show the location and range of the cancer.

The above is the diagnosis method of colorectal cancer. Through the introduction of experts, I believe you have a certain understanding of the diagnosis of colorectal cancer. If you still have any questions about the diagnosis of colorectal cancer, please consult our online experts.

For more information, please visit the colorectal cancer topic http://www..com.cn/zhongliu/dca/ or consult with experts for free. The experts will give detailed answers based on the patient's specific situation!