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The Study

Plasma testosterone response to short-term human chorionic gonadotropin administration in men with follicle-stimulating hormone suppressed by exogenous estrogen.

In simple terms

This study just looked at how some men’s bodies reacted to a hormone shot, but we don’t know how they were picked, if there was a comparison group, or if anything else affected the results. So we can’t say the hormone caused anything — we just know what happened in these guys.

20%

Analysis score

20/ 44

Maximum 44 for a cross-sectional study.

Where the score came from

Reporting0
Methodology0
Publication100
Statistical0
Study type (basis of the score)
Cross-Sectional Study
Level 4 - Case series
What’s the bottom line?

Scientists blocked a hormone called FSH and gave men another hormone (HCG) to see if testicles still made testosterone.

Where does this study sit?

Systematic Reviews & Meta-analyses

Max 100

Randomized Trials

Max 90

Cohort Studies

Max 72

Case-Control

Max 58

Cross-Sectional

Max 44

Case Reports & Series

Max 30

Expert Opinion

Max 5
StrongerWeaker
Case Reports & Series
Level 4
20

20 / 100

Quality score

Detailed descriptions of individual patients or small groups. Valuable for identifying new conditions or side effects, but cannot establish generalizable conclusions.

Cannot establish causation

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Key takeaways

Summary

Based on the study abstract and findings.

  1. 1Yes — it means FSH isn't needed for short-term testosterone production in men.
  2. 2Testicles still made testosterone even when FSH was blocked.

Score breakdown, methodology, conflicts of interest, evidence analysis & raw study data

Publication

Journal

Fertility and sterility

Year

1975

Authors

E. Reiter, H. Kulin

6 citations
Analysis v3
Fit Body Science verdict — we translate health studies into clear verdicts backed by peer-reviewed research.

Not medical advice. For informational purposes only. Always consult a qualified healthcare professional before making health decisions.