Your “AA” Genotype Result Might Be Wrong — And Up to 40% of Nigerian Lab Tests Are.

Thirteen years ago, a lab handed a young woman named Kawthar Abdulazeez a result: AA, genotype normal. She built her life around it — married a partner who tested AS, and never worried about sickle cell, because that’s what “AA” is supposed to mean. Years later, both of her daughters were diagnosed with sickle cell disease, genotype SS. A retest revealed the truth: her actual genotype was SC. The original lab result had been wrong all along.

Her story isn’t rare. It’s a symptom of something much bigger.
Why “Know Your Genotype” Isn’t Enough Anymore
For decades, Nigeria’s entire national defence against sickle cell disease has rested on one simple instruction: get tested, know your genotype, choose a compatible partner. Millions of young Nigerians have followed it faithfully. The problem is what happens after the blood is drawn. Medical laboratory experts have found that up to 40% of genotype test results in Nigeria are inaccurate or entirely falsified. In one Nigerian state’s pediatric clinic, Professor Obiageli Nnodu — Director of the Centre for Sickle Cell Research and Training in Africa at the University of Abuja — found that 40% of children being treated for sickle cell disease had originally received incorrect lab results.

How a Country Gets This Wrong So Often
The failure isn’t one bad lab — it’s a stack of systemic gaps. Many standalone laboratories still rely on manual solubility tests, an outdated method notoriously prone to misclassifying carriers of the sickle cell trait or rarer variants like Hb C as a normal “AA.” The modern standard — automated tools like High-Performance Liquid Chromatography or Haemoglobin Electrophoresis — remains too expensive for the average local clinic. On top of that, Nigeria has become a landing ground for uncalibrated equipment and expired reagents, and thousands of unregistered labs operate with unqualified staff and no quality management systems, largely unpoliced by the Medical Laboratory Science Council of Nigeria. In the most troubling cases, some technicians reportedly accept bribes to alter an “AS” result to “AA,” just to force a marriage past a skeptical family.

The Real Cost of a Wrong Result
The fallout isn’t only medical. Wives have been wrongly accused of infidelity when a child is born with SS genotype, because nobody questioned whether the original “AA” test was ever accurate. Career couples have built family plans believing their children faced zero risk, only to be blindsided. Not every story ends in tragedy, though — one man, Adewole, was tested AS by a private lab, only to be correctly diagnosed as SC a year before graduating university. That correction let him choose an AA partner; he and his wife now have two healthy children. The difference between his outcome and Abdulazeez’s wasn’t luck of genetics — it was whether the error got caught in time.

The New Rule Nigeria Needs
Professor Nnodu’s message is direct: low adoption of quality assurance systems in Nigerian labs is actively driving up sickle cell births, undermining even the progress made in premarital screening. The fix experts are calling for is twofold — regulators phasing out manual solubility testing in favour of automated chromatography, and the public health message itself evolving. “Know your genotype” isn’t wrong; it’s incomplete. The missing second half is: don’t trust a single test from an unverified source.

What You Can Do
• Don’t treat one genotype result as final, especially if it came from an unaccredited or standalone lab. Cross-verify at an accredited secondary reference laboratory before major marital or reproductive decisions.
• Ask what method your lab uses. If it’s a manual solubility test rather than HPLC or haemoglobin electrophoresis, treat the result as preliminary, not conclusive.
• If a child is diagnosed SS despite both parents testing AA, request a professional retest before assuming infidelity or any other explanation — lab error is a documented, common cause.
• Push back on stigma around AS status. Reducing the shame attached to carrier status removes the incentive that drives some people toward bribing labs for a false result in the first place.