Each page covers one condition properly: what it actually is and what it feels like, what causes it, how common it really is and in whom, and how it's diagnosed — followed by the specific variants with a replicated link to it, and, where the research supports it, how genetics can change the way a medicine behaves.
Written in two registers so one page serves both readers: plain language first, then a clinical detail section with the precise terminology, effect sizes and diagnostic thresholds. Every claim is sourced from freely-available published research and cited on the page, so you can check us — or hand the page to your doctor. 385 conditions so far, growing continuously, and free to reuse with attribution (CC BY 4.0).
3 results in Pregnancy
Diabetes that first appears in pregnancy shares most of its known genetics with type 2 diabetes. A 2026 study across British, Finnish and Chinese populations added two genes of its own, ELL2 and ATRAID, and pointed at how the body regulates insulin.
Read more → PregnancyThe severe form, hyperemesis gravidarum, affects 0.3-2% of pregnancies and its cause was unknown — until a 2018 genome-wide study pointed at two genes for placentation and appetite, GDF15 and IGFBP7.
Read more → PregnancyA pregnancy-specific liver condition whose leading variant sits in the same gene that, when severely mutated, causes an inherited liver disease of its own — a mechanistic thread the source study traces directly.
Read more →One diagnosed condition or measurable trait covered properly: what it actually is, what causes it, how common it is, how it is diagnosed, and the specific variants with a replicated link to it — every claim sourced from published research.
No. Every page here is informational, not a diagnosis. A result should be discussed with a doctor or a licensed genetic counselor, never acted on alone.
Because they are not disorders. Height, ABO blood group and a handful of others describe a measurable characteristic with nothing to diagnose — "Trait" says so plainly instead of implying a disease that is not one.
Only after a replicated association in published research, verified against the primary study rather than a gene name or a marketing claim — the same discipline the variant pages themselves follow.