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Related Experiment Videos

Is systematic screening for thyroid disorders indicated in subfertile men?

K Poppe1, D Glinoer, H Tournaye

  • 1Department of Endocrinology, Vrije Universiteit Brussel (AZ-VUB), Belgium. hemopek@az.vub.ac.be

European Journal of Endocrinology
|February 25, 2006
PubMed
Summary
This summary is machine-generated.

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Thyroid dysfunction and autoimmunity prevalence are similar in men with normal and abnormal semen characteristics. Routine thyroid screening is not recommended for subfertile men at reproductive medicine centers.

Area of Science:

  • Endocrinology
  • Reproductive Medicine
  • Andrology

Background:

  • Limited data exist on thyroid disorder prevalence in male subfertility.
  • Thyroid dysfunction may impact male reproductive health.

Purpose of the Study:

  • To determine the prevalence of thyroid dysfunction and autoimmunity in men with normal versus abnormal semen parameters.
  • To assess the correlation between thyroid function and semen characteristics.

Main Methods:

  • A study of 292 men at a reproductive medicine center, stratified into normal (n=39) and abnormal (n=253) semen groups.
  • Thyroid function assessed via serum thyrotropin (TSH) and free thyroxine (FT4).
  • Thyroid autoimmunity identified by thyroid peroxidase antibodies (TPO-Ab). Semen analysis followed WHO and Kruger criteria.

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Main Results:

  • No significant difference in thyroid dysfunction or autoimmunity prevalence between groups.
  • Thyroid dysfunction (elevated TSH) found in 2.6% of men with normal semen and 0.4% with abnormal semen.
  • Thyroid autoimmunity (TAI) detected in 2.6% of men with normal semen and 4.7% with abnormal semen.
  • Free thyroxine (FT4) levels independently predicted semen characteristics.

Conclusions:

  • Thyroid dysfunction and autoimmunity prevalence are comparable in men with normal and abnormal semen quality.
  • Systematic screening for thyroid disorders is not advised for subfertile men presenting to tertiary reproductive medicine centers based on these findings.