(fer-TIH-lih-tee SPEH-shuh-list) 
A doctor who has special training in helping people who have trouble conceiving or carrying a pregnancy to term. Fertility specialists may use surgery, medications, or procedures, such as in vitro fertilization, to treat fertility-related conditions. They may also use procedures, such as sperm banking and egg freezing, to help preserve a person’s ability to have children after receiving certain treatments for cancer. Some fertility specialists also perform procedures to help prevent pregnancy, such as tubal ligation or vasectomy.