What is the primary purpose of inserting a fiber optic colonoscope?

The primary purpose of inserting a fiber optic colonoscope is to visualize the rectum and various sections of the colon. This specialized instrument allows healthcare professionals to examine the inner lining of the colon and rectum in detail, enabling the detection of abnormalities such as polyps, tumors, inflammation, or other gastrointestinal conditions. The use of fiber optics provides high-quality images, enhancing the clinician's ability to assess the health of the colon and determine if further interventions, such as biopsies or therapeutic procedures, are needed.

In contrast, while a colonoscope can be used for biopsy procedures, that function is secondary to its main purpose of visualization. The colonoscope does not influence digestion speed or directly relieve constipation; its role is diagnostic and sometimes therapeutic rather than a treatment for these conditions.