Blood in Stool (Hematochezia & Melena)
Educational content • Medi Info HubUpdated: 10/19/2026
Overview
Rectal bleeding or blood in the stool indicates hemorrhage along the digestive tract. Bright red blood (hematochezia) typically arises from the lower gastrointestinal tract, whereas dark, tarry stools (melena) indicate upper GI bleeding.
Possible Causes
Straining during constipation, mucosal tears, vascular malformations, ischemic colitis, infectious gastroenteritis, or gastrointestinal malignancy.
When to Seek Care
Always contact a physician for any visible blood in the stool or on toilet paper to obtain an accurate diagnosis.
The information provided on this website is for educational purposes only and is not intended as a substitute for professional medical advice, diagnosis, or treatment. Always seek the advice of a qualified healthcare provider with any questions you may have regarding a medical condition.