Browse Medications by Everyday Health Concerns: Blood in stool or dark stools

Written by Amar Lunagaria
Pharm.D • NiHowdy Founder

Reviewed by James Wong
Pharm.D • NiHowdy Founder
Updated Jan 27, 2025
•Published Jan 15, 2025

What are Blood in stool or dark stools?
Symptoms of Blood in stool or dark stools
- Bright red blood on the toilet paper or in the toilet bowl
- Dark, tarry stools (which may indicate blood that has been digested)
- Abdominal pain or cramping
- Feeling weak or faint
- Unexplained weight loss
What causes Blood in stool or dark stools?
- Hemorrhoids or anal fissures (which often cause bright red blood)
- Gastric ulcers or stomach bleeding
- Diverticulosis (pouches in the colon that can bleed)
- Inflammatory bowel diseases (e.g., Crohn's disease or ulcerative colitis)
- Colon cancer or polyps
- Peptic ulcers or gastritis (causing dark, tarry stools)
Risk factors for Blood in stool or dark stools
- Are over 50 or have a family history of colorectal cancer
- Have inflammatory bowel diseases like Crohn's disease or ulcerative colitis
- Are pregnant or have recently given birth (due to hemorrhoids)
- Are taking medications like blood thinners or nonsteroidal anti-inflammatory drugs (NSAIDs)
- Have had previous gastrointestinal issues, such as ulcers or diverticulosis
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How are Blood in stool or dark stools diagnosed?
- A physical examination and review of your symptoms
- Stool tests to check for blood or infection
- Endoscopy (e.g., colonoscopy or sigmoidoscopy) to examine the colon or rectum
- Imaging tests like a CT scan or abdominal ultrasound
- Blood tests to check for anemia or signs of infection
How are Blood in stool or dark stools treated?
- Hemorrhoids or anal fissures can be treated with topical creams or sitz baths
- Ulcers may be treated with medications to reduce stomach acid
- Inflammatory bowel diseases may require anti-inflammatory medications or immunosuppressants
- Surgery may be necessary for serious conditions like colon cancer or large polyps
- Blood transfusions or other interventions for severe bleeding
Medications for Blood in stool or dark stools
- Antacids or proton pump inhibitors (e.g., omeprazole)
- Anti-inflammatory drugs for inflammatory bowel disease (e.g., mesalamine)
- Antibiotics if an infection is present
Can Blood in stool or dark stools be prevented?
- Eating a high-fiber diet to prevent constipation
- Staying hydrated and maintaining a healthy weight
- Avoiding excessive use of alcohol or NSAIDs
- Getting regular screenings if you are over 50 or have a family history of colon cancer
- Managing stress and avoiding smoking
Managing Blood in stool or dark stools at home
- Eat fiber-rich foods like fruits, vegetables, and whole grains
- Drink plenty of water to keep stools soft
- Avoid straining during bowel movements
- Use over-the-counter hemorrhoid creams or pads for relief if hemorrhoids are the cause
- Apply warm compresses to relieve pain from hemorrhoids
When should you seek help for Blood in stool or dark stools?
- You see blood in your stool or have dark, tarry stools
- You experience significant abdominal pain or cramping
- You feel faint, weak, or dizzy
- You notice unexplained weight loss or fatigue
- You have a family history of colorectal cancer or polyps
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*NiHowdy's prescription pricing is derived from various sources. While we strive to provide accurate estimates, the displayed price may not always match the pharmacy's charge. For precise pricing, please consult your pharmacy and present the BIN/GRP/PCN numbers from your NiHowdy coupon.