Dr. Tik Tok, Yangyang is real. According to relevant public information, at 8: 00 pm on May 23rd, 2020, at the invitation of Yang Yunlong, a researcher in the Department of Cell and Genetic Medicine, Yang Yang made a network popular science broadcast with the theme of answering questions related to male pregnancy on the popular Tik Tok platform. Dr. Yang Yang is a reproductive andrologist in Shanghai No.1 Maternal and Infant Health Hospital and a visiting lecturer at the Chinese University of Hong Kong. He insisted on popularizing andrology knowledge among young people and packaging popular science knowledge with paragraphs, which was in line with the tastes of young people.