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Amenorrhea following oral contraception
American Journal of Obstetrics and Gynecology
|January 11, 1976
Summary
Most women resume menstruation within 60 days after stopping oral contraceptives. Late menarche is linked to post-pill amenorrhea, but duration or type of oral contraceptive use showed no significant effect.
Area of Science:
- Reproductive Endocrinology
- Gynecology
Background:
- Oral contraceptives (OCs) are widely used by nulliparous women.
- Understanding the return to menstruation after cessation is crucial for reproductive health management.
Purpose of the Study:
- To investigate the time to menarche after stopping oral contraception in nulliparous women.
- To identify factors associated with delayed return of menstruation.
Main Methods:
- Prospective study of 326 nulliparous women discontinuing OCs.
- Follow-up data collected on 311 participants.
- Analysis of time to menarche and correlation with OC use duration and type.
Main Results:
- 89% of women menstruated within 60 days of stopping OCs.
- Only 7 women experienced delayed menstruation (≥180 days).
- Late menarche strongly correlated with post-pill amenorrhea (PPA); OC duration and type were not significant factors.
Conclusions:
- Most nulliparous women experience a prompt return to menstruation after OC cessation.
- Post-pill amenorrhea is a recognized complication, though infrequent.
- Further research may explore underlying mechanisms for PPA in susceptible individuals.