Hong Seong Woo is a South Korean urologist, professor and Youtuber. He graduated with bachelor and master degrees in the College of Medicine at Ulsan University. He trained in Asan Medical Center in Seoul to obtain his specialization in Urology. After becoming a specialist, he served as an assistant professor of medicine at Dankook University, and worked as a specialist for 7 years at Yejak Urology Clinic. He appeared in a Youtube video in 2021 and immediately gained popularity for his quick wit and very direct way of talking about the male genitalia. He opened his own channel but led to a legal conflict with the hospital which ended in his resignation. In early 2022, he opened Dr. JMJ (Jomulju) Urology Clinic and a new Youtube channel where he is contributing to changing the perception of urology by correcting misconceptions about urology and false myths about sexual function.
(Source: Korean = Namu Wiki || Translation = MyDramaList)