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available at http://www.ncbi.nlm.nih.gov/pubmed/30247578 Editorial Comment: We often see men seeking treatment for infertility when they are relatively young, and we know that hypoandrogenism is commonly associated with male reproductive dysfunction. These investigators evaluated men 15 years after an initial assessment for fertility and observed that bulk semen parameters, testosterone and pituitary function generally declined through time. Since testosterone is such a central player in male health, it is essential to continue to follow men with infertility long after they have the families they desire. Craig Niederberger, MD Suggested Reading Mulhall JP, Trost LW, Brannigan RE et al: Evaluation and management of testosterone deficiency: AUA guideline. J Urol 2018; 200: 423. Haider KS, Haider A, Doros G et al: Long-term testosterone therapy improves urinary and sexual function, and quality of life in men with hypogonadism: results from a propensity matched subgroup of a controlled registry study. J Urol 2018; 199: 257. Re: An Evaluation of Reported Follicle-Stimulating Hormone, Luteinizing Hormone, Estradiol, and Prolactin Reference Ranges in the United States F. Grimstad, M. Le, A. Zganjar, D. Flores, E. Gourley, D. May and A. K. Nangia Department of Obstetrics and Gynecology, and Urology, University of Kansas Medical Center, Kansas City, Kansas Urology 2018; 120: 114e119. doi: 10.1016/j.urology.2018.07.024 Abstract available at http://www.ncbi.nlm.nih.gov/pubmed/30056193 844 MALE INFERTILITYavailable at http://www.ncbi.nlm.nih.gov/pubmed/30056193 844 MALE INFERTILITY Copyright © 2019 American Urological Association Education and Research, Inc. Unauthorized reproduction of this article is prohibited. Copyright © 2019 American Urological Association Education and Research, Inc. Unauthorized reproduction of this article is prohibited.