Primary amenorrhea
Absence of menstruation. Amenorrhea is conventionally divided into primary and secondary amenorrhea. With primary amenorrhea, menstruation never takes place. It fails to occur at puberty. With secondary amenorrhea, menstruation starts but then stops. The absence of menstruation during pregnancy is a form of physiologic amenorrhea, physiologic in the sense that it is completely normal and is not caused by anything pathologic. Amenorrhea during lactation is another type of physiologic amenorrhea. The word "amenorrhea" is compounded from three Greek roots "a-", no + "men", month + "rhoia", flow = no monthly flow. Amenorrhea is less commonly called amenia.

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primary amenorrhea n amenorrhea in which menstruation has not yet occurred by age 16

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failure of menstruation to occur at puberty.

Medical dictionary. 2011.

Look at other dictionaries:

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  • Amenorrhea — Absence or cessation of menstruation. Amenorrhea is conventionally divided into primary and secondary amenorrhea: {{}}Primary amenorrhea menstruation never takes place. It fails to occur at puberty. Secondary amenorrhea menstruation starts but… …   Medical dictionary

  • amenorrhea — amenorrheal, amenorrhoeal, amenorrheic, amenorrhoeic, adj. /ay men euh ree euh, euh men /, n. Pathol. absence of the menses. Also, amenorrhoea. [1795 1805; A 6 + MENO + RRHEA] * * * Lack of menstruation. Signs of primary amenorrhea (failure to… …   Universalium

  • amenorrhea —    Absence or suppression of menses. Primary amenorrhea is the failure to begin menses by age 16, secondary amenorrhea is tardy menses (from pregnancy, stress, dieting, illness or intensive physical training) in the previously menstruating woman …   Herbal-medical glossary

  • amenorrhea — noun absence or suppression of normal menstrual flow • Syn: ↑amenorrhoea, ↑amenia • Derivationally related forms: ↑amenorrhoeal (for: ↑amenorrhoea), ↑amenorrheal • …   Useful english dictionary

  • Physiologic amenorrhea — The cessation of menstruation that it is completely normal and is not caused by anything pathologic. The lack of menstruation during pregnancy is a form of physiologic amenorrhea. Amenorrhea during lactation is another. Amenorrhea is… …   Medical dictionary

  • Secondary amenorrhea — The abnormal cessation of menstruation. Amenorrhea is conventionally divided into primary and secondary amenorrhea. With primary amenorrhea, menstruation never takes place. It fails to occur at puberty. With secondary amenorrhea, menstruation… …   Medical dictionary

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