Sex assignment  Sex assignment (sometimes known as gender assignment) is the determination of an infant's sex at birth. In the majority of births, a relative, midwife, nurse or physician inspects the genitalia when the baby is delivered, and sex is assigned, without the expectation of ambiguity. Assignment may also be done prior to birth through prenatal sex discernment. Sex assignment at birth usually aligns with a child's anatomical sex and phenotype. The number of births where the baby is intersex - where they do not fit into strict definitions of male and female - has been reported to be as low as 0.018% up to roughly 1.7%, depending on which conditions are counted as intersex. The number of births with ambiguous genitals is in the range of 0.02% to 0.05%. These conditions may complicate sex assignment. Other intersex conditions involve atypical chromosomes, gonads or hormones. Reinforcing sex assignments through surgical or hormonal interventions is often considered to violate the individual's human rights. The act of assignment carries the implicit expectation that future gender identity will develop in alignment with the physical anatomy, assignment, and rearing. In about 99% of cases, the child's gender identity matches their sex assignment. If sex assignment and gender identity do not align, the person may be transgender or gender non-conforming (GNC). The sex assignment of an intersex individual may also contradict their future gender identity. "Sex assignment" is the determination of an infant's sex at birth. Terms that may be related to sex assignment are: Assigned male at birth (AMAB): a person of any age and irrespective of current gender whose sex assignment at birth resulted in a declaration of "male". For example, when an attending midwife or physician announces, "It's a boy!" Synonyms: male assigned at birth (MAAB) and designated male at birth (DMAB). Assigned female at birth (AFAB): a person of any age and irrespective of current gender whose sex assignment at birth resulted in a declaration of "female". For example, when an attending midwife or physician announces, "It's a girl!" Synonyms: female assigned at birth (FAAB) and designated female at birth (DFAB). "Intersex", in humans and other animals, describes variations in sex characteristics including chromosomes, gonads, sex hormones, or genitals that, according to the UN Office of the High Commissioner for Human Rights, "do not fit typical binary notions of male or female bodies".