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

7 results in Immunologic

Immunologic

Childhood Steroid-Sensitive Nephrotic Syndrome

A kidney disorder causing heavy protein loss in urine, usually responsive to steroid treatment in children — a 2018 transethnic GWAS across European, African and Maghrebian ancestries found a strong HLA-DRB1 risk association.

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Immunologic

Selective IgA Deficiency

The most common primary immunodeficiency, usually mild or symptom-free — a 2016 GWAS named four risk loci directly in its title, one of them the ATG13/AMBRA1 region represented on this page.

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Immunologic

Sarcoidosis

An inflammatory disease of unknown cause that forms tiny clusters of immune cells in organs, most often the lungs — a 2016 fine-mapping study found its genetics concentrate overwhelmingly in the MHC region, and differ measurably between its two main clinical presentations.

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Immunologic

Chronic Hepatitis C

For a few years this was the pharmacogenomic test people actually ordered: it predicted who would respond to interferon. Then the drugs changed, and a marker that once decided treatment became a historical curiosity. That is the most useful thing this page has to say.

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Immunologic

Crohn's Disease

A lifelong inflammatory bowel disease that can affect any part of the digestive tract. Its genetics are unusually well mapped — NOD2 was the first susceptibility gene ever found for a common complex disease, and IL23R showed a drug class where to aim.

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Immunologic

FUT2 Secretor Status

A common FUT2 variant determines whether ABO blood-group antigens appear in saliva, gut mucus and other secretions; the roughly one in five people who are "non-secretors" are strongly resistant to the dominant norovirus strains.

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Immunologic

CCR5-Delta32 and HIV-1 Resistance

A 32-base-pair deletion in the CCR5 gene that removes a key HIV-1 entry receptor from immune cells; two copies confer strong resistance to CCR5-tropic HIV-1, while one copy slows disease progression without preventing infection.

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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.