Knowing what genotype and blood group mean is only useful if you actually know yours. Many Nigerians — including educated adults — have never been tested, or were told their results years ago without fully understanding them. This lesson is about the practical reality of getting tested, understanding your results, and keeping that information with you. Genotype testing uses a blood sample, typically drawn from your finger or arm. The two most common testing methods in Nigeria are haemoglobin electrophoresis and high-performance liquid chromatography (HPLC). Both separate the different types of haemoglobin in your blood and identify which types are present. HPLC is more precise and is becoming more widely available in teaching hospitals and quality private labs. Blood group testing (ABO and Rh factor) is even simpler — it involves adding small amounts of your blood to different sera and observing the reaction. Most hospitals and medical laboratories can do this in under 15 minutes. Where can you get tested in Nigeria? Teaching hospitals such as LUTH (Lagos), UCH (Ibadan), ABUTH (Zaria), and JOHESU-accredited hospitals in your state all offer these tests. Private medical laboratories in most cities also offer them, and many pharmacies with a qualified phlebotomist can do basic blood group testing. Some outreach programmes and NGOs focused on sickle cell awareness offer free testing — watch for these events in your community. Cost varies by location and method, but basic genotype and blood group testing typically costs between N1,000 and N5,000 in most private labs. At teaching hospitals the cost is often lower. How to read your result: Your genotype result will show one of the following: AA, AS, SS, AC, SC. Your blood group will show a letter (A, B, AB, or O) followed by a plus or minus for the Rh factor — for example, O+ or B-. Keep a physical or digital copy of your results. Share them with your doctor. Do not rely on memory alone.