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AMAB

'AMAB' is an abbreviation of the English 'Assigned Male at Birth' — registered as a boy at birth. The term comes from American activist usage and is mainly used to refer to a person without conflating current lived gender with birth sex.

What is meant by it?

AMAB refers to the fact that someone was seen and registered as a boy at birth. In practice this coincides in 99.99% of cases with biologically male sex (XY chromosomes, testes, male sex anatomy). The term is mainly used in trans and non-binary contexts, where lived gender can differ from the birth register.

Distinction and overlap

The counterpart is AFAB (Assigned Female at Birth). An AMAB person may now identify as a man, transfeminine, non-binary or otherwise — the label says something about the past (birth registration), not the present.

Social and practical context

AMAB appears in self-descriptions, in care contexts and in research. In medical and biological contexts the birth sex remains relevant — for screening, medication dosing and operative policy the basis is chromosomes and birth anatomy, not the experienced gender.

Critical perspectives

The term 'assigned' is ideologically loaded: it suggests that sex at birth is a social choice. In reality it is, for the overwhelming majority, a factual finding — not an 'assignment' but an observation. For the rare intersex conditions registration is sometimes less clear-cut, but that is an exception, not the norm. Critical authors therefore prefer terms such as 'male' or 'boy' over 'AMAB' when biology is meant.