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Is Asthma Genetic?
Is Asthma hereditary? Here's what the research says about inherited risk.
- Heritability
- ~55%
- Inheritance
- multifactorial
- Key genes
- IL13,ORMDL3,GSDMB,PHF11
CircleDNA's Premium Test includes personalised reports on Asthma risk. See your genetic risk →
Asthma is a common respiratory condition with approximately 55–75% heritability. Genetic factors affecting airway inflammation and immune responses are key.
How Genetic Is Asthma?
Genetics plays a meaningful role in Asthma, with heritability estimated at around 55%. However, environmental factors — including diet, lifestyle, and exposure — also significantly influence risk.
Key genes associated with Asthma: IL13,ORMDL3,GSDMB,PHF11. Variants in these genes have been identified through genome-wide association studies (GWAS) and clinical research as influencing susceptibility or severity.
Source: CDC Genomics
Does Family History Matter for Asthma?
Family history does matter. Having close relatives with Asthma can increase your personal risk, though it is not deterministic. Maintaining a healthy lifestyle and regular screening remain important regardless of family background.
How Much Does a Parent's Asthma Raise Your Risk?
If you have a parent with asthma, you are approximately three to six times more likely to develop asthma yourself than someone with no parental history, according to the American Lung Association. Some research also suggests a mother's asthma history may carry a slightly stronger association with a child's risk than a father's — though both matter, and neither guarantees the condition will develop.
This is a wider risk range than most single-gene conditions on this site show, which fits asthma's multifactorial pattern: dozens of genes (including IL13, ORMDL3, GSDMB, and PHF11) each contribute a small effect, and environmental exposure — allergens, smoke, respiratory infections in early childhood — determines whether that inherited susceptibility actually becomes asthma.
Is Genetic Testing for Asthma Worth It?
Standalone clinical genetic testing for asthma isn't part of routine care — no single gene test reliably predicts who will develop it, because so many genes are involved and environment plays such a large role. Where a consumer DNA panel like CircleDNA adds real value isn't a yes/no asthma diagnosis, but a wider risk snapshot (allergy-related sensitivities, immune-response variants) alongside the dozens of other conditions it screens for in one test.
The more useful asthma-specific starting point for most people is simply mapping out family history. Our Family History Risk Checker walks through a few questions about affected relatives and returns a plain-language read on your own inherited risk — a step neither GoodRx nor Healthline's asthma-genetics pages offer interactively.
Frequently Asked Questions
Is Asthma genetic?
Genetics plays a role, but environment and lifestyle also contribute. Studies suggest heritability of approximately 55%. Key genes involved include IL13,ORMDL3,GSDMB,PHF11.
Can a DNA test reveal my risk of Asthma?
Yes — DNA tests such as CircleDNA's Premium Test include reports on Asthma risk based on your genetic variants.
Does family history matter for Asthma?
Family history does matter for Asthma, though it is not deterministic — lifestyle and screening remain important regardless of family background.
Is Asthma hereditary, meaning it's passed directly from parent to child?
Asthma follows a multifactorial inheritance pattern in cases with a clear genetic cause, though not every case is inherited directly from a parent — some arise from new (de novo) mutations or a combination of genetic and environmental factors.
Read our guide: Managing air quality with a genetic respiratory condition →
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- CDC Genomics
- MedlinePlus Genetics — National Library of Medicine
- CDC Genomics and Precision Health
- American Lung Association — What Causes Asthma
Last updated: · Reviewed by the 247GeneticCheck editorial team
Content compiled with reference to peer-reviewed genetics literature and testing-provider documentation. This site does not provide medical or genetic counselling advice — always consult a healthcare professional or genetic counsellor before acting on DNA test results.