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A colonoscopy is a procedure whereby a physician inserts a viewing tube (colonoscope) into the rectum for the purpose of inspecting the colon. Colonoscopy is the best method currently available to diagnose, detect, and treat abnormalities within the colon.

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    Related Diseases & Conditions

    • Anal Itching Anal itching is the irritation of the skin at the exit of the rectum, known as the anus, accompanied by the desire to scratch....learn more »
      In This Article
      Anal Itching Article
      • Anal itching facts
      • What is anal itching?
      • What causes anal itching?
      • What are additional symptoms associated with anal itching?
      • What kind of doctor treats anal itching?
      • How is the cause of anal itching diagnosed?
      • What is the treatment for anal itching?
      • Local anesthetics
      • Vasoconstrictors
      • Protectants
      • Astringents
      • Antiseptics
      • Keratolytics
      • Analgesics
      • Corticosteroids
      • What if anal itching persists?
    • Colitis (Types) Inflammation of the inner lining of the colon is referred to as colitis. Symptoms of the inflammation of the colon lining include...learn more »
    • Blood in the Stool (Rectal Bleeding) Rectal bleeding (hematochezia) refers to the passage of bright red blood from the anus. Common causes include anal fissures,...learn more »
      In This Article
      Blood in the Stool (Rectal Bleeding) Article
      • Rectal bleeding (blood in stool) facts
      • What does rectal bleeding (blood in stool) mean?
      • What are causes of blood in the stool (rectal bleeding)?
      • What diseases and conditions can cause blood in the stool (rectal bleeding)?
      • Anal fissures
      • Hemorrhoids
      • Diverticulitis
      • Colon cancer and polyps
      • Angiodysplasias
      • Colitis and proctitis
      • Meckel's diverticulum
      • Polypectomy
      • Rare causes of rectal bleeding
      • What kind of doctor treats rectal bleeding?
      • When should I call a doctor for blood in the stool (rectal bleeding)?
      • How is the cause of blood in the stool (rectal bleeding) diagnosed?
      • History and physical examination
      • Anoscopy
      • Flexible sigmoidoscopy
      • Colonoscopy
      • Radionuclide scans
      • Visceral angiogram
      • Video capsule and small intestine enteroscopy
      • MRI and CT tomographic angiography
      • Nasogastric tube aspiration
      • Esophagogastroduodenoscopy
      • Blood tests
      • What is the treatment for rectal bleeding (blood in the stool)?
      • Can rectal bleeding (blood in the stool) be prevented?
      • What is the prognosis of rectal bleeding (blood in the stool)?
    • Anal Fissure An anal fissure is a small tear or cut in the skin lining of the anus. Pain and/or rectal bleeding during bowel movements are...learn more »
      In This Article
      Anal Fissure Article
      • Anal fissures facts
      • What are anal fissures?
      • What causes anal fissures?
      • What are the symptoms of anal fissures?
      • How are anal fissures diagnosed and evaluated?
      • What is the treatment for anal fissures?
      • General treatment and home remedies for anal fissures
      • Prescription medications for anal fissures
      • Surgical treatment for anal fissures
      • Personal observation
    • Diverticulitis (Diverticulosis,
      Diverticular Disease)
      Diverticulitis is a condition in which diverticuli in the colon rupture. The rupture results in infection in the tissues that...learn more »
    • Abdominal Pain (Causes, Remedies, Treatment) Abdominal pain can have many causes. Some of the less serious causes include bloating, gas, colitis, endometriosis, food...learn more »

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