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Updated: Aug 9, 2025

Z-Scores for Assessing Ovarian Reserve in Young Patients Undergoing Fertility Preservation
Published on: October 25, 2024
Premature ovarian insufficiency and infertility
Waduge Dhanushi Fernando1, Amanda Vincent2, Karen Magraith3
1MBBS, BMedSci (Hons), MRMed (Excellence), MWomHMed, DRANZCOG, RANZCOG Adv Trainee, Monash Health Reproductive Biology Unit Fellow, Melbourne, Vic.
Premature ovarian insufficiency (POI) is the loss of ovarian function before 40, a key cause of infertility. Diagnosis involves specific hormone levels, and while some spontaneous pregnancy occurs, most women need fertility treatments or consider alternatives.
Area of Science:
- Reproductive Endocrinology
- Gynecology
Background:
- Premature ovarian insufficiency (POI) is defined as the loss of ovarian function before age 40.
- POI can arise spontaneously or due to medical treatments (iatrogenic).
- It is a significant factor contributing to infertility in women.
Purpose of the Study:
- To provide a comprehensive overview of diagnosing premature ovarian insufficiency (POI).
- To discuss the management strategies for POI, particularly concerning infertility.
- To highlight fertility preservation options for at-risk individuals.
Main Methods:
- Diagnosis relies on elevated follicle-stimulating hormone (FSH) levels (>25 IU/L) measured twice, at least one month apart.
- A history of oligomenorrhea or amenorrhea lasting 4-6 months is required.
- Secondary causes of amenorrhea must be excluded.
Main Results:
- Around 5% of women may achieve spontaneous pregnancy after a POI diagnosis.
- The majority of women with POI require assisted reproductive technologies, such as donor oocytes or embryos, for pregnancy.
- Alternative family-building options include adoption or remaining childfree.
Conclusions:
- Early consideration of POI is crucial for women with irregular or absent menstruation, even without typical menopausal symptoms.
- Fertility preservation should be discussed with individuals at risk of developing POI.
- Management strategies should address both the diagnosis and the infertility associated with POI.
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