Imagine a small papercut that refuses to stop bleeding, or a bruise that appears for no reason at all. For most of us, blood clotting is an invisible shield, a rapid-response team that patches up our injuries without a second thought. But for those with Haemophilia, that shield is missing a vital part of its blueprint.
Haemophilia 101: More Than Just a Bleeding Disorder
Haemophilia is a rare genetic condition where the blood doesn’t clot properly because it lacks specific “clotting factors” due to mutations in two key genes: F8 (for hemophilia A, the most common type, ~80% of cases) or F9 (for hemophilia B). These mutations disrupt production of clotting factors VIII or IX, leading to excessive bleeding from minor injuries or even spontaneously.
Genetic screening is crucial because symptoms alone (like bruising or joint bleeds) aren’t specific, and factor levels can vary, pinpointing the exact mutation confirms diagnosis, predicts severity, guides therapy, and aids family planning.
- Haemophilia A: The most common type, caused by a lack of Factor VIII (8).
- Haemophilia B: Also known as “Christmas Disease,” caused by a lack of Factor IX (9).
- The X-Factor: Why it predominantly affects males. Since the genes for Factors 8 and 9 are located on the X chromosome, males (who have only one X) are more vulnerable. Females are usually “carriers” often showing no symptoms but silently passing the code to the next generation.
The Power of Sequencing: Why Finding the Mutation Matters
Screening isn’t optional, it’s the gold standard for several life-changing reasons:
- Accurate Diagnosis: Blood tests measure factor levels, but they’re unreliable in carriers (women with one bad X, normal levels possible) or mild cases mimicking von Willebrand disease, which can look identical but require completely different medications.
- Guides Treatment:
- Matches therapy: Gene therapy trials target exact mutations (AAV vectors fix F8/F9).
- Avoids overtreatment: Prevents unnecessary infusions in carriers or low-risk families.
- Family Planning and Prevention
- Carrier testing for moms/sisters (50% inheritance risk via X).
- New mutations get identified to counsel unaffected families.
From Treatment to Transformation
Knowing your exact genetic mutation is the key to Personalized Medicine, fewer bleeds, fewer hospital visits, and a life lived without the constant fear of the unknown.
Whether you are a patient, a carrier, or simply someone with a family history of bleeding, your DNA holds the answer. Screen the haemophilia status using Carrier Screening by NGI. Our advanced genomic analysis identifies the exact mutation in your clotting genes, providing you with a definitive roadmap for treatment and family planning.
If you have a family history of Hemophilia A or are planning for pregnancy, understanding your genetic status is a crucial first step. Many carriers show no symptoms, but can still pass the condition to their children.
Take control of your future with Carrier Screening. Our advanced genetic testing helps identify whether you carry mutations in the F8 gene associated with Hemophilia A, giving you clarity and confidence before starting a family.
Why consider carrier screening?
- Early risk detection for inherited disorders
- Informed family planning decisions
- Access to genetic counseling for personalized guidance
Don’t wait for symptoms, act on knowledge. Talk to your healthcare provider today or contact us to learn more about how Carrier Screening can support a healthier next generation.
Reference:
Miesbach, Wolfgang, Robert Klamroth, Johannes Oldenburg, and Andreas Tiede. 2022. “Gene Therapy for Hemophilia—Opportunities and Risks.” Deutsches Ärzteblatt International 119 (51-52). https://doi.org/10.3238/arztebl.m2022.0353.
Pezeshkpoor, Behnaz, Johannes Oldenburg, and Anna Pavlova. 2022. “Insights into the Molecular Genetic of Hemophilia a and Hemophilia B: The Relevance of Genetic Testing in Routine Clinical Practice.” Hamostaseologie 42 (6): 390–99. https://doi.org/10.1055/a-1945-9429.
Tran H. 2024. Genetic Testing for Hemophilia: An Advanced Diagnostic Approach. Adv Med Ethics. 10:080.
