Blood is a vital fluid that circulates through the body, delivering oxygen, nutrients, hormones, and immune cells while removing waste products. It plays a crucial role in maintaining health, immunity, and survival.
Oxygen Transport: Red blood cells carry oxygen from the lungs to tissues.
Nutrient Distribution: Delivers glucose, amino acids, and vitamins to cells.
Immunity: White blood cells defend against bacteria, viruses, and infections.
Clotting & Healing: Platelets help stop bleeding after an injury.
Temperature Regulation: Maintains body temperature and pH balance.
Waste Removal: Removes carbon dioxide, urea, and toxins via kidneys and lungs.
Blood Type | Can Donate To | Can Receive From |
---|---|---|
O- (Universal Donor) | All blood types | O- |
O+ | O+, A+, B+, AB+ | O+, O- |
A- | A-, A+, AB-, AB+ | A-, O- |
A+ | A+, AB+ | A+, A-, O+, O- |
B- | B-, B+, AB-, AB+ | B-, O- |
B+ | B+, AB+ | B+, B-, O+, O- |
AB- | AB-, AB+ | AB-, A-, B-, O- |
Anemia – Low red blood cell count, causing fatigue and weakness.
Leukemia – Cancer affecting white blood cells.
Hemophilia – A rare condition where blood does not clot properly.
Thalassemia – A genetic disorder causing abnormal hemoglobin production.
Dengue & Malaria – Can lead to low platelet count and severe bleeding.
Used for surgeries, accidents, cancer treatments, and blood disorders.
Regular donations ensure a steady supply for hospitals.
Blood has a limited shelf life, making frequent donations essential.
World Blood Donor Day: Celebrated on June 14 every year to raise awareness.