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A medical condition where the sex glands produce little or no sex hormones.
The evidence shows a consistent pattern: testosterone exposure matters for penile growth before and during puberty but has little clear effect on adult penile size, while simple body measures (height,...
Testosterone supplementation can increase sexual desire for some women—most consistently for postmenopausal patients diagnosed with hypoactive sexual desire disorder (HSDD)—but benefits are modest, no...
Supplementing testosterone in adolescent males carries real medical risks—some well-documented in short-term studies and others uncertain because long-term safety data are limited—so the decision hing...