Dr. Ehrlich, a native of Rosenberg, Texas, received his B.A. from the University of Texas and his M.D. from Baylor College of Medicine in Houston in 1965. Following his internship and residency in Obstetrics and Gynecology at Philadelphia General Hospital and Tulane University Charity Hospital respectively, Ehrlich returned to Texas in 1971-1973 to complete a fellowship in Gynecologic Oncology at University of Texas.
Ehrlich served as Assistant Professor in the Department of Obstetrics and Gynecology at Indiana University Medical Center, and became Chair of the Department in 1982. He was a member of the Editorial Advisory Board for the International Journal of Gynecological Cancer, and served on committees of the Indiana State Board of Health.