This page contains affiliate links. We may earn a commission if you purchase through them, at no extra cost to you.
Is OTC Deficiency Genetic?
- Heritability
- ~100%
- Inheritance
- x-linked
- Key genes
- OTC
CircleDNA's Premium Test covers 500+ health and ancestry reports. Explore your DNA →
OTC deficiency is the most common urea cycle disorder caused by OTC gene mutations. It causes ammonia accumulation which can be fatal if untreated.
How Genetic Is OTC Deficiency?
OTC Deficiency has a strong genetic basis. Research estimates heritability at approximately 100%, meaning genetic factors account for the majority of variation in whether individuals develop this condition.
Key genes associated with OTC Deficiency: OTC. Variants in these genes have been identified through genome-wide association studies (GWAS) and clinical research as influencing susceptibility or severity.
Source: MedlinePlus Genetics
Does Family History Matter for OTC Deficiency?
Yes — family history is one of the strongest predictors of OTC Deficiency. If a first-degree relative (parent, sibling, or child) has been diagnosed, your own risk may be significantly elevated. Discussing your family history with a healthcare provider or genetic counsellor is strongly recommended.
The world's most comprehensive at-home DNA test — 500+ reports covering diet, fitness, cancer risk, disease risk, and family planning.
Discover your genetic profile →