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A reference for what the literature reports. Not medical advice.

Disease

infant gynecomastia

MONDO:0001323Mondo

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Findings

No curated finding names infant gynecomastia yet. Everything below is reference data from Mondo, HPO and GenCC, not evidence about what affects it.

Definition

Transient bilateral swelling of breast tissue in a neonate that results from the waning influence of maternal estrogen.

Definition from the Mondo Disease Ontology (MONDO:0001323), read 2026-09-29. CC BY 4.0.

Where it sits

A kind of: gynecomastia disorder

Other names

1 name

Resolves to: infant gynecomastia

Also called: breast engorgement in newborn