Donor eligibility rules are intended to protect the health and safety of the donor, as well as the patient who receives the transfusion. On World Blood Donation Day learn the rules of donating blood To donate blood to another person, the donor must be healthy. Healthy means that you feel well and can perform normal activities. Donor age should be between 18-55 years. Donor must weigh at least 45kg to be eligible for blood donation for his/her own safety. Donor haemoglobin should be above 12.5gm per cent. Donation interval – Wait at least 3 months between 2 whole blood donations. The donor should not be fasting, should eat at regular mealtimes and drink plenty of fluids before blood donation. The donor should have slept well the previous night. Health conditions in which you cannot donate blood Donors who are diabetic, suffering from heart disease, liver disease (Hepatitis B/C), kidney disease, cancer, epilepsy, leprosy, endocrine disorders, blood disorders, blood clotting problems and ...