Conditions

Continuously updated · last reviewed Oct 19, 2026

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).

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All 385 Autoimmune 33 Behavioural 13 Cancer 37 Cardiovascular 33 Condition 25 Dental 3 Dermatologic 8 Dermatological 1 Developmental 5 Digestive 19 Endocrine 6 Hematologic 10 Immunologic 7 Infection 1 Infectious 8 Inherited 6 Metabolic 15 Musculoskeletal 18 Neurological 18 Nutritional 1 Ophthalmic 10 Pharmacogenomic 17 Pharmacogenomics 4 Pregnancy 3 Reproductive 4 Respiratory 10 Sensory 5 Trait 53 Urinary 1 Urological 11

6 results in Endocrine

Endocrine

Addison's Disease

Autoimmune Addison's disease is the immune system's destruction of the adrenal cortex. The first genome-wide study of it found nine risk loci: immune genes it shares with other autoimmune diseases, and AIRE, a gene that teaches the immune system what not to attack.

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Endocrine

Benign Nodular Goiter

An enlarged thyroid with one or more lumps, almost always non-cancerous -- and, per the largest thyroid genetics study yet, genetically correlated with the disease it is most often confused with the risk of: thyroid cancer.

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Endocrine

Hirsutism

Excessive hair growth in women is usually attributed to one cause — but a genome-wide study designed specifically to look beyond it found a rare, unusually strong-effect variant that most studies its size would have missed.

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Endocrine

Hypothyroidism

An underactive thyroid, whose genetic risk spans two different kinds of biology at once — autoimmune loci shared with many other immune diseases, and genes directly involved in making and regulating thyroid hormone.

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Endocrine

Uterine Fibroids

The most common benign tumor of the female reproductive tract, and the leading reason for hysterectomy — genetics shows it shares real biological ground with a second, very different-looking condition: endometriosis.

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Endocrine

Polycystic Ovary Syndrome

A condition defined by a committee, with no single test — and the genetics still found something. The strongest locus reached an odds ratio of 0.67, which for a common variant is large.

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Questions about conditions on this site

What counts as a "condition" page on this site?

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.

Does MyGeneLog™ diagnose any of these conditions?

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.

Why do some entries say "Trait" instead of a disease category?

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.

How is a variant linked to a condition page?

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.