Bejarano was born in Cuautla, Morelos, on April 11, 1916, to Jesús Bejarano Nuñez and Carmen Marcia Valadez Lizarraga. He was the youngest of his brothers. Bajarano studied at the medical school of the National Autonomous University of Mexico (UNAM) from 1933 to 1938 and received his degree on July 18, 1939, becoming a surgeon and midwife. He specialized in orthopedics and trauma.
