20/08/2026
9 Causes of Blood in Stool
Blood in the stool can come from anywhere in the digestive tract. Bright red blood usually comes from the lower bowel or a**s, while black, tarry stool may suggest bleeding higher up in the stomach or small intestine.
🟣 1. Hemorrhoids
➟ Swollen veins around the a**s or re**um
➟ Often cause bright red blood on toilet paper or after passing stool
➟ May also cause itching, swelling, or discomfort
🟣 2. A**l Fissure
➟ A small tear in the lining of the a**s
➟ Typically causes sharp pain during bowel movements with bright red blood
➟ Often associated with hard stools or constipation
🟣 3. Diverticular Bleeding
➟ Small pouches in the colon can occasionally bleed
➟ Bleeding may be sudden and painless
➟ Stool may contain bright red or maroon blood
🟣 4. Colore**al Polyps
➟ Polyps are growths on the lining of the colon
➟ Some can bleed without causing pain
➟ Certain polyps can gradually develop into colore**al cancer
🟣 5. Colore**al Cancer
➟ May cause persistent or intermittent bleeding
➟ Other signs can include change in bowel habits, unexplained weight loss, or iron-deficiency anemia
➟ Early cancer may cause no symptoms, so screening is important
🟣 6. Inflammatory Bowel Disease
➟ Crohn’s disease and ulcerative colitis can cause intestinal inflammation
➟ Symptoms may include bloody diarrhea, abdominal pain, and urgency
➟ Weight loss or fatigue may also occur
🟣 7. Infectious Colitis
➟ Certain bacterial or parasitic infections can inflame the bowel
➟ May cause bloody diarrhea, abdominal cramps, fever, and vomiting
➟ Significant dehydration or severe symptoms require medical assessment
🟣 8. Peptic Ulcer / Upper GI Bleeding
➟ Bleeding from the stomach or duodenum may cause black, sticky, tar-like stool (melena)
➟ Vomiting blood or coffee-ground-like material may also occur
➟ Common causes include peptic ulcers and some NSAID painkillers
🟣 9. Angiodysplasia
➟ Fragile, abnormal blood vessels can develop in the bowel wall
➟ More common in older adults
➟ Bleeding may be painless and intermittent
➟ Recurrent bleeding can lead to anemia
🟣 When to Seek Urgent Medical Help
➟ Heavy or continuous re**al bleeding
➟ Black, tarry stools
➟ Vomiting blood
➟ Severe abdominal pain
➟ Dizziness, fainting, rapid heartbeat, or marked weakness
➟ Blood in stool with unexplained weight loss or persistent bowel changes
Medical disclaimer: This information is for general educational purposes only and does not replace professional medical advice, diagnosis, or treatment. Any unexplained, recurrent, or significant blood in the stool should be evaluated by a qualified healthcare professional.