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Hormonal Therapy Before Sperm Retrieval in Men With Non-Obstructive Azoospermia: From Controversy to Precision Using
Sandro C Esteves1,2,3
1Andrology and Human Reproduction Clinic Campinas Brazil.
Reproductive Medicine and Biology
|July 24, 2026
Summary
Hormonal therapy can aid sperm retrieval in some men with non-obstructive azoospermia (NOA). It is most effective for those with hypogonadism and normal or moderately elevated FSH levels, not advanced testicular failure.
Area of Science:
- Reproductive Endocrinology
- Male Infertility
- Spermatogenesis
Background:
- Non-obstructive azoospermia (NOA) affects male fertility.
- Hormonal therapy aims to improve sperm retrieval outcomes in NOA.
- Understanding the hypothalamic-pituitary-gonadal axis is crucial for NOA management.
Purpose of the Study:
- Review biological rationale and clinical evidence for hormonal therapy before sperm retrieval in NOA.
- Emphasize phenotype-based selection using APHRODITE criteria.
- Discuss limitations and future directions of hormonal therapy in NOA.
Main Methods:
- Narrative review of existing literature.
- Integration of evidence on hormonal regulation and sperm retrieval.
- Focus on studies evaluating hCG, FSH, or combined gonadotropin therapy.
Main Results:
- Hormonal therapy, particularly hCG, can increase intratesticular testosterone and stimulate spermatogonia.
- Exogenous FSH may support Sertoli cell function.
- Benefit is most likely in selected men with hypogonadism and normal/moderately elevated FSH.
Conclusions:
- Hormonal therapy for NOA is a selective, off-label strategy.
- APHRODITE criteria can guide patient selection for endocrine optimization.
- Further randomized trials are needed to refine hormonal therapy protocols.
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