Last reviewed May 17, 2026

Blood group and genotype in Nigeria: what they mean

Blood group and genotype are different things. Blood group relates to blood transfusion compatibility; genotype is important for sickle cell risk and family planning.

Quick answer

Your blood group may be A, B, AB, or O, with Rh positive or negative. Your genotype may be AA, AS, AC, SS, SC, or others. In Nigeria, genotype testing is important because sickle cell disease is inherited.

Blood group

Used for blood donation, transfusion, pregnancy care, and medical records. It does not tell you your sickle cell genotype.

Genotype

Shows haemoglobin inheritance pattern. Two parents can pass traits to children, so genotype counselling matters before marriage or pregnancy planning.

Common genotype meanings

  • AA: does not carry sickle haemoglobin S.
  • AS: carries sickle cell trait.
  • SS: sickle cell disease.
  • AC/SC: other haemoglobin patterns that may need counselling.

This page is educational, not a substitute for lab testing or genetic counselling. Confirm results at a qualified medical laboratory.

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