Infertility is defined as the failure to achieve a clinical pregnancy after 12 months of regular unprotected sex. It can be primary infertility, which means a couple has never conceived, or secondary infertility, which means previous pregnancy but failure to conceive subsequently. There are many potential risk factors and causes of infertility for both men and women, including age, medical issues, lifestyle factors, and physical problems. Diagnostic procedures involve medical histories, physical exams, lab tests, and imaging to evaluate fertility and identify any treatable conditions for both male and female partners. Counseling supports patients coping with infertility, facilitates decision making around treatment options, and helps achieve a better quality of life.