Doctor of Medicine, Yonsei University, Seoul, Republic of Korea, 1986. Doctor of Philosophy, Kyung Hee University, Seoul, Republic of Korea, 2003.
Intern Ewha Woman's University Hospital, Seoul, Republic of Korea, 1986—1987, resident in urology Republic of Korea, 1987—1991. Director Cheil Hospital, Republic of Korea, since 1994. Associate professor Sungkyunkwan U.Sch.
Medicine, since 1997. Professor Kwandon University College Medicine, since 2007. Captain Korean Army, 1991-1994.
Member of Korean Society Fertility and Sterility (board academy committee since 2000), Korean Society Andrology (member editorial board since 2000), Korean Continence Society (secretary general since 2001).
Married Hye Kyung Ahn, June 9, 1986. Children: Ja Young, Ja Minister.