When is TSH Männer actually useful?

TSH measurement in men is clinically useful when there is suspicion of thyroid dysfunction – e.g., unexplained fatigue, weight changes, palpitations, cold intolerance, loss of libido, or erectile dysfunction. It is also relevant in male infertility, as thyroid hormones affect spermatogenesis. However, routine screening in asymptomatic men is not recommended by most guidelines because the prevalence of overt thyroid disease is low, and overdiagnosis can lead to unnecessary treatment. Interpretation must account for age- and population-specific reference ranges – TSH levels naturally rise slightly with age. In men with known risk factors (e.g., thyroid medications, pituitary disorders, iodine deficiency), regular monitoring is indicated. Importantly, an isolated elevated TSH without symptoms (subclinical hypothyroidism) does not automatically require therapy; the decision should be based on TSH level, TPO antibodies, and individual risk profile. The evidence for TSH testing in the general population is moderate, while for targeted diagnostic use it is strong.