Rare diseases · Sign or symptom

Abnormal T cell activation

HP:0410035

What it means

Any abnormality in the activation of T cells, i.e. the change in morphology and behavior of a mature or immature T cell resulting from exposure to a mitogen, cytokine, chemokine, cellular ligand, or an antigen for which it is specific.

Part of the broader category

Also called: Abnormal T lymphocyte activation · Abnormal T-cell activation · Abnormal T-lymphocyte activation

Abnormal T cell activation

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This page uses the Human Phenotype Ontology (2026-06-23) — Human Phenotype Ontology Consortium, hpo.jax.org. Disease associations from Orphanet (INSERM), CC BY 4.0. Content is educational and is not medical advice.