七十年代起,纤维结肠镜已在各国广泛应用。近年来国内也在逐步开展,对提高结肠病变的早期诊断和治疗结肠息肉都很有价值。结肠病变约80%发生在直肠和乙状结肠,因此,纤维乙状结肠镜在临床上更为实用,优点是:在检查前不必用镇静止痛和抗胆碱能类药物,不用洗肠及 X 线的辅助。每例操作只需5～10分钟,失败机会少,操作安全。 Since the 1970s, colonoscopy has been widely used in various countries. In recent years, it has been gradually carried out domestically, which is of great value for the early diagnosis and treatment of colon polyps. About 80% of colonic lesions occur in the rectum and sigmoid colon. Therefore, fibrous sigmoidoscopy is more practical in clinical practice. The advantage is that it is not necessary to use sedation pain and anticholinergic drugs, and do not have the assistance of colon cleansing and X-ray before examination. Each operation takes only 5 to 10 minutes, with less chance of failure and safe operation.