A bleeding ulcer can empty half your blood volume in a day, these are the quiet emergencies that empty blood banks at 3 a.m. ## Why these patients need blood Gut bleeds hide: black stools, tiredness, then collapse. Volume plus red cells is the rescue. Endoscopy stops the bleed; donated blood keeps the brain and heart perfused while it happens. ## What a donor changes here Every unit on the shelf for these patients was an ordinary person’s ordinary Tuesday. Register as a donor, two minutes, OTP once, your own 6-digit sign-in code, and the next patient on this list finds blood already waiting. If you are arranging blood for one of these patients right now: post a free request (matching donors near the hospital are alerted in seconds) or check stock on e-RaktKosh and call the centre before travelling. The requisition slip guide explains the paper the hospital gave you.
System, safety & Assam
Blood for gastric bleeding, ulcers and black stools
A bleeding ulcer can empty half your blood volume in a day, these are the quiet emergencies that empty blood banks at 3 a.m.
People also ask
Why do ulcer bleeds need transfusions?
Blood loss into the gut can be fast and large; replacement keeps you alive through endoscopy.
Is vomiting blood always an emergency?
Yes, every time, immediately.
How much blood might one bleed need?
From one unit to many, severe bleeds are among the largest single recipients.
About this article
Written by Assam Blood Donor team. Medical review: pending, content follows published national (NBTC/NACO) guidance and is for general education, not personal medical advice. Last updated 11 Sept 2026.
Sources: NBTC donor selection criteria · standard donation-centre practice
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