Genotype & Sickle Cell Blood Tests (AA, AS, SS)
Haemoglobin Genotype, Sickle Cell & Couple Compatibility Testing in London
Know your exact haemoglobin genotype (HbAA, HbAS, HbSS, HbAC, HbSC) and ABO/Rh blood group at our CQC-regulated North West London clinic & on-site laboratory (305 Neasden Lane, NW10 1QR). Ideal for premarital genetic compatibility, family planning, visa medicals, and personal health records — no GP referral needed.
Sickle Cell Genotype (AA, AS, SS)
Know your sickle cell status. Plan your family's future.
Sickle Cell Genotype Plus
Know your sickle cell status and protect future generations.
Blood Group & Sickle Cell Genotype (AA, AS, SS)
Know your blood group and inherited sickle cell status.
Blood Group & Sickle Cell Genotype Plus
Know your blood group and inherited sickle cell status.
Blood Group & Sickle Cell Genotype Plus Thalassaemia Screen - Couple
Screen both partners for sickle cell and thalassaemia before starting a family.
Blood Group & Sickle Genotype - Couple (AA, AS, SS)
Know your blood group and sickle genotype before you conceive.
Haemoglobin Electrophoresis
Specialised gold-standard blood screening to detect sickle cell trait, thalassaemia, and...
Blood Group (ABO+Rh)
Discover your blood type for health and peace of mind.
Full Body MOT Health Check Plus Cancer & Genotype
Our comprehensive health, biomarker and genetic assessment profile.
Full Body MOT Health Check Plus Genotype
Comprehensive health screening with sickle cell and thalassaemia status.
Pre-IVF Medicals - Female
Optimise your fertility journey before IVF begins.
Understanding Haemoglobin Genotype Testing (AA, AS, SS, AC, SC)
A haemoglobin genotype blood test (also known as a sickle cell genotype test or haemoglobin electrophoresis / HPLC) identifies the inherited haemoglobin variants in your red blood cells. Knowing whether you carry the sickle cell trait (HbAS), Haemoglobin C trait (HbAC), or normal adult haemoglobin (HbAA) is essential for couples planning marriage or pregnancy.
| Partner 1 | Partner 2 | Genetic Compatibility Outcome |
|---|---|---|
| AA | AA, AS, AC, or SS | Compatible — No risk of Sickle Cell Disease (HbSS) in children |
| AS | AS or SS | High Risk — 25%–50% chance per pregnancy of Sickle Cell Disease (HbSS) |
| AS | AC | Caution — 25% chance of HbSC disease; genetic counselling advised |
Frequently Asked Questions
How quickly do I get my genotype results?
Because E&J Bio runs haemoglobin variant testing on our on-site HPLC laboratory analyser in London, individual and couple genotype results are typically issued within 24 hours as an official PDF report.
Is blood group the same as genotype?
No — your ABO/Rh blood group (O+, A+, B+, AB-) classifies surface antigens on red blood cells, whereas your genotype (AA, AS, SS, AC) identifies the haemoglobin proteins inside red blood cells. Our combined Blood Group & Sickle Cell Genotype test covers both in a single blood draw.
Do I need to fast before a genotype blood test?
No fasting is required for standalone Genotype or Blood Group & Genotype tests. You can eat and drink normally before your appointment.
