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Multilingual Demographic Dictionary, second unified edition, English volume

Anovulatory cycles

Multilingual Demographic Dictionary, second unified edition, English vol.
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Anovulatory cycles  {{{CompleteIndexTerm}}}


The term temporary sterility (621-5) is used even in instances where a woman’s inability to conceive is not the result of a pathological condition.Women are said to have sterile periods 1 in each menstrual cycle 2, because generally conception can occur only during a few days around the time of ovulation 3. The period of sterility that extends from conception (602-1) to the return of ovulation after a delivery, which includes pregnancy (602-5) and is influenced by the duration of breastfeeding 4, is called the nonsusceptible period 5, particularly in mathematical models of reproduction. Temporary sterility is also used to refer to the occurrence of anovulatory cycles 6 (i.e., menstrual cycles in which ovulation does not occur) or to abnormal periods of amenorrhea. The sub-fecundity 7 of very young women is commonly called adolescent sterility 8; it would be better to talk about adolescent sub-fecundity 8.

  • 5. The period between delivery and the return of ovulation is often called the period of post-partum sterility.
  • 6. Also called anovular cycles.

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