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Educational content, research, and facts on blood donation, hematology, and health awareness — updated regularly for the REDDAR community.

Explore Signals
38%of people are eligible to donate but only 6.8% do
1 in 7hospital patients needs blood
4.7Munits needed annually in India
25 minaverage time to find a donor with REDDAR
NEWBlood Donation

Who Can Donate Blood? The Complete Eligibility Guide

Most healthy adults between 18–65 weighing over 50kg can donate. Learn the full criteria including medical conditions, medications, and travel restrictions.

NEWMyths & Facts

10 Common Blood Donation Myths — Debunked

"Donating blood makes you weak." "You can get infected." We bust the most persistent misconceptions with science-backed facts.

Blood Groups

ABO & Rh Blood Group Systems Explained

Why does blood type matter? A deep dive into the ABO and Rh systems, compatibility charts, and why O-negative is called the universal donor.

Hematology

What Happens to Your Blood After Donation?

From the moment blood leaves your arm to when it reaches a patient — the full journey through testing, processing, and storage.

NEW
Medical Research

Artificial Blood: Where Does the Science Stand in 2025?

Researchers are making breakthroughs in synthetic blood substitutes. We explore the latest clinical trials and what it means for global blood supply.

Blood Donation

The 48-Hour Recovery: What to Eat and Do After Donating

Iron-rich foods, hydration tips, and activities to avoid — everything you need to bounce back quickly and feel your best after donation.

NEW
Latest News

India's Blood Bank Crisis: A State-by-State Analysis

A new report reveals severe shortages in rural blood banks. REDDAR's role in bridging the gap through real-time donor networks.

Hematology

Platelet Donation vs. Whole Blood: Key Differences

Platelets save cancer patients and trauma victims. Learn how apheresis donation works and why it's critically underutilized in India.

Blood Groups

The Rarest Blood Types in the World

Beyond ABO — the Bombay phenotype, Golden Blood (Rh-null), and other ultra-rare types that have only been found in a handful of humans.

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