Trait
Abnormal T cell subset number
Abnormal increase or decrease of absolute number (either count per volume or percentage of total lymphocytes) of any T cell subpopulation, commonly characterized as CD3+ lymphocytes, in the blood, compared to a reference range for a given sex and age-group.
Reference genomeGRCh38hg38
Positions on gene and variant pages follow this choice, in this browser.
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Get my Genome Test2 genes linked to Abnormal T cell subset number
Changes in these genes cause rare conditions in which Abnormal T cell subset number is seen. Most people with this trait have none of those conditions, and a gene on this list says nothing about anyone's own genome.
How often is among people with one of the gene's conditions, the most often across them, as the Human Phenotype Ontology records it. These pages describe traits and the research behind them; they are not a diagnosis, and a doctor or genetic counsellor is the person to ask about symptoms.
Narrower traits
- Abnormally low T cell receptor excision circle level15 genes
- Abnormal CD4:CD8 ratio7 genes
- Abnormal total CD8+ T cell number5 genes
- Abnormal CD4+ T cell subset proportion4 genes
- Abnormal CD8+ T cell subset proportion
- Abnormal double-negative T cell proportion
- Abnormal exhausted T cell proportion
- Abnormal gamma-delta T cell proportion
- Abnormal HLA-DR+ T cell proportion
- Abnormal memory T cell proportion
- Abnormal mucosal-associated invariant T cell proportion
- Abnormal naive T cell proportion
- Abnormal total CD4+ T cell number
Broader traits
Where this comes from
- The Human Phenotype Ontology, release 2026-09-01: the trait, its names, its definition and the genes linked to it. Find out more at hpo.jax.org.
- Data release 2026.10.16-c6eea6bf.
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