Trait

Abnormal mean corpuscular volume

A deviation from normal of the mean corpuscular volume, or mean cell volume (MCV) of red blood cells, usually taken to be 80 to 100 femtoliters.

HPO HP:0025065

Also called: Abnormal erythrocyte volume, Abnormal MCV
Body system: Abnormality of blood and blood-forming tissues

Read the genes linked to Abnormal mean corpuscular volume, and the rest of your genome, with one test.

From $449Free shipping · Results in 6–8 weeks

Get my Genome Test

1 gene linked to Abnormal mean corpuscular volume

Changes in these genes cause rare conditions in which Abnormal mean corpuscular volume 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.

Gene	How often it is seen	Conditions
RHAGRh associated glycoprotein	Very often (80–99%)	In 1 condition

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

Broader traits

Abnormal erythrocyte morphology

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.

One test. A lifetime of answers.