TY - CHAP M1 - Book, Section TI - Chapter 44. Male Infertility A1 - Walsh, Thomas J. A1 - Smith, James F. A2 - McAninch, Jack W. A2 - Lue, Tom F. PY - 2013 T2 - Smith & Tanagho's General Urology, 18e AB - Infertility is defined as the failure to conceive despite 1 year of regular unprotected intercourse. Approximately 15% of couples will experience infertility, and of these, 20% will have a male factor that is solely responsible; male factors will contribute in an additional 30% of cases. In general, male infertility is identified by abnormalities on a semen analysis; however, other issues can contribute to infertility despite normal semen. SN - PB - The McGraw-Hill Companies CY - New York, NY Y2 - 2024/03/28 UR - accessmedicine.mhmedical.com/content.aspx?aid=56952028 ER -