As a medical journalist researching digestive-health procedures in Mumbai, I found that persistent abdominal pain, unexplained bleeding, changes in bowel habits and other intestinal symptoms may require more than routine medication. A colonoscopy allows a gastroenterologist to directly examine the lining of the large intestine and rectum and, when necessary, perform procedures such as biopsies or polyp removal during the same examination. For patients researching Colonoscopy in Mumbai, Dr. Vedant Karvir at Globus Gastroenterology Hospital provides gastroenterology, hepatology and therapeutic endoscopy services. The hospital describes him as a Hepato-Gastroenterologist with more than 12 years of experience in these fields.
A colonoscopy is a lower gastrointestinal endoscopic examination used to inspect the entire colon, which forms the lowest major portion of the gastrointestinal tract. A thin, flexible endoscope with a camera is introduced through the anus and guided through the rectum and colon. Images are displayed on a monitor, allowing the doctor to examine the intestinal lining.
Unlike a sigmoidoscopy, which examines only the lower or sigmoid portion of the colon, a colonoscopy is designed to assess the entire colon. This distinction can be important when symptoms may originate farther along the large intestine.
During the examination, the doctor may take tissue samples for laboratory analysis or remove certain polyps. This means colonoscopy can serve both diagnostic and therapeutic purposes.
A gastroenterologist may recommend colonoscopy when symptoms suggest a problem within the large intestine. The Globus Gastroenterology Hospital reference page lists several reasons for lower-GI endoscopy, including investigating abdominal pain, intestinal abnormalities, bleeding and colorectal polyps. It can also allow tissue sampling and removal of certain polyps.
Symptoms that may lead to further evaluation include:
Not everyone with these symptoms necessarily needs a colonoscopy. The decision depends on the patient’s age, medical history, symptoms, examination findings and previous investigations.
Although both procedures use an endoscope to inspect the lower digestive tract, they are not identical.
Sigmoidoscopy examines the rectum and sigmoid colon, while colonoscopy is used to examine the entire colon. The reference material notes that sigmoidoscopy may be recommended when the doctor needs to investigate the lower part of the colon, including symptoms such as rectal bleeding, abdominal pain or altered bowel movements.