Traits

Traits linked to BARD1

BRCA1 associated RING domain 1

The Human Phenotype Ontology links 7 traits to BARD1, by body system: features seen in people with one of the gene's rare conditions.

Abnormality of the genitourinary system

Trait	How often it is seen
Abnormal fallopian tube morphology	Very often (80–99%)
Ovarian cancer	Very often (80–99%)
Prostate cancer	Sometimes (5–29%)

Abnormality of the digestive system

Trait	How often it is seen
Primary peritoneal carcinoma	Very often (80–99%)
Cancer of the pancreas	Sometimes (5–29%)

Abnormal tissue mass

Trait	How often it is seen
Cancer of skin pigment cells	Sometimes (5–29%)

Abnormality of the breast

Trait	How often it is seen
Breast cancer	Often (30–79%)

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.

Where this comes from

The Human Phenotype Ontology, release 2026-09-01: the traits linked to BARD1 and how often each is seen. Find out more at hpo.jax.org.

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