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Here Are What Diseases Can Be Detected By a Colonoscopy

what diseases can be detected by a colonoscopy

A colonoscopy is a medical procedure to examine the inner lining of the colon and rectum. Diseases can be detected by a colonoscopy.  A long, flexible tube known as a colonoscope is inserted and guided through the colon and rectum during this examination. The colonoscope has a light source and a camera at the end that lets the doctor visualize the bowel wall tissues and take tissue biopsies when necessary. A colonoscopy is typically carried out as an outpatient procedure and under sedation to minimize discomfort.

Colonoscopy is a widely utilized medical procedure because it can diagnose a range of conditions affecting the colon. It is a highly effective tool for physicians and healthcare professionals to understand underlying symptoms better and treat various colon-related illnesses.

Diseases Detected By Colonoscopy

Colorectal Cancer

In its early stages, colorectal cancer often has no symptoms. Fortunately, a screening colonoscopy can detect and remove precancerous polyps before they become cancerous. This is important because early colon cancer detection significantly improves treatment efficacy.

Ulcerative Colitis

This chronic inflammatory bowel disease targets the lining of the colon and rectum. Symptoms include bloody diarrhea, abdominal pain, weight loss, and fatigue. A colonoscopy aids in diagnosing ulcerative colitis and guiding treatment strategies, which may include medication or, in some cases, surgery.

Irritable Bowel Syndrome (IBS)

IBS affects the colon, leading to symptoms like abdominal pain, bloating, and irregular bowel movements. While the exact cause of IBS is unknown, a colonoscopy can rule out other conditions, assisting in effective symptom management.

Gastrointestinal Bleeding

Gastrointestinal bleeding can be either obvious, presenting as red or dark-colored blood in the stool, or occult, where blood is not visibly present but can be detected via medical testing. A colonoscopy serves as a critical diagnostic tool, helping identify the location and cause of the bleeding.

Crohn’s Disease

Crohn’s disease is a chronic inflammatory bowel disease that can impact any part of the digestive tract. Symptoms often include abdominal pain, diarrhea, rectal bleeding, weight loss, and fatigue.

Colon Polyps

Colon polyps are growths on the colon’s lining that can turn cancerous over time. During a colonoscopy, doctors can detect and remove these polyps, significantly reducing the risk of developing colorectal cancer.


Small pouches in the colon called diverticula can become inflamed or infected, resulting in diverticulitis. Symptoms include abdominal pain, fever, and chills. A colonoscopy can help diagnose diverticulitis, enabling prompt treatment with antibiotics, pain relief, and surgery if needed.

Colonic Strictures

A colonic stricture is colon narrowing that can block waste movement through the bowel. This condition may result from various factors, including inflammatory bowel diseases, previous surgery, or cancer. Symptoms may include abdominal pain, bloating, constipation, or a change in bowel habits. Colonoscopy allows for the visualization and, if needed, dilation of the narrowed area.


Hemorrhoids, also known as piles, are swollen veins in the lower rectum. They can be internal or external and cause discomfort, itchiness, or severe pain. A colonoscopy can detect internal hemorrhoids and determine the need for further treatment.


While many factors can lead to constipation, persistent issues might indicate a deeper problem. If standard treatments like increased fluid intake or a fiber-rich diet don’t alleviate constipation, a colonoscopy can help identify any underlying causes.

Take Charge of Your Health and Talk to Your Doctor Today

It is crucial for individuals experiencing symptoms related to their colon health to undergo a colonoscopy. This diagnostic procedure can effectively identify various conditions and inform appropriate treatment plans. Additionally, a colonoscopy can contribute to overall gut health by detecting potential issues early on.

Discussing the possibility of a colonoscopy with a medical professional is recommended to ensure the best possible outcomes for your health. And everyone, even those who aren’t experiencing problems, must begin regular screening colonoscopies at 45. Some people may need to start earlier if they have a high risk of colon cancer.

Don’t delay your colonoscopy – schedule your appointment today.


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