Hao-Hung Tsai was born in Hsinchu, Taiwan in 1973. He received his medical doctor from the Faculty of Post-Baccalaureate Medicine Department, Kaohsiung Medical University, Kaohsiung, Taiwan, in 2003. He is a visiting staff of the department of medical imaging, Chung Shan Medical University Hospital, Taichung, Taiwan from 2007 to now. His research interest is medical image of breast and chest.