What is Rectal Bleeding?

Rectal bleeding refers to the passage of blood from the anus. It may appear as bright red blood on toilet paper, blood mixed with stool, dark maroon stools, or black, tarry stools depending on the source of bleeding.

While rectal bleeding is often caused by benign conditions, it can also be a sign of more serious disease. Any episode of rectal bleeding should be evaluated by a physician to determine the underlying cause.

What are the Causes of Rectal Bleeding?

There are several potential causes of rectal bleeding, including:

• Hemorrhoids: Swollen blood vessels in the anal canal are one of the most common causes of bright red bleeding, especially during or after bowel movements.
• Anal fissures: Small tears in the lining of the anus can cause pain and bleeding, particularly with hard stools.
• Diverticulosis: Small pouches in the colon wall may bleed, sometimes significantly.
• Colon polyps: Growths in the colon that can bleed and may carry a risk of progression to cancer if not removed.
• Colorectal cancer: Bleeding may be intermittent and painless and should always be ruled out, particularly in patients over age 45 or those with risk factors.
• Inflammatory bowel disease (IBD): Conditions such as ulcerative colitis or Crohn’s disease can cause inflammation and bleeding.
• Infections or proctitis: Inflammation of the rectum due to infection, radiation, or other causes.

How is Rectal Bleeding Evaluated?

Evaluation begins with a detailed medical history and physical examination. A colorectal surgeon may perform:

• Digital rectal examination
• Anoscopy to visualize the anal canal
• Flexible sigmoidoscopy or colonoscopy to evaluate the colon

Laboratory testing or imaging studies may also be recommended depending on the severity and suspected cause of bleeding.

What are the Treatment Options?

Treatment depends on the underlying cause:

• Hemorrhoids: Dietary fiber, hydration, topical treatments, and office-based procedures or surgery when necessary.
• Anal fissures: Stool softeners, fiber supplementation, topical medications, and occasionally surgical intervention.
• Polyps: Removal during colonoscopy.
• Inflammatory conditions: Medical therapy directed at reducing inflammation.
• Cancer: Treatment may include surgery, chemotherapy, radiation, or a combination of therapies depending on stage and location.

Prompt evaluation ensures appropriate management and reduces the risk of complications.

What is POST-TREATMENT PROGNOSIS?

Prognosis depends on the cause of bleeding. Many benign conditions, such as hemorrhoids and fissures, respond well to conservative or minor procedural treatments.

If rectal bleeding is related to more serious conditions such as colorectal cancer or inflammatory bowel disease, early diagnosis and timely treatment significantly improve outcomes.

Any persistent, recurrent, or unexplained rectal bleeding warrants further medical evaluation.