1, Pathogenesis of Prostatic Hyperplasia (1994- 1999): My doctoral thesis is "The Role of IGF-I, II and Their Receptors in the Pathogenesis of Prostatic Hyperplasia". Since then, he has been engaged in clinical and laboratory research on prostate diseases, especially the correlation between prostate growth factor and BPH. Studies have shown that growth factor is the occurrence factor of benign prostatic hyperplasia. He has successively obtained 2 scientific research funds from the Ministry of Health and published more than 10 scientific research works.
2. Clinical and epidemiological study of sexual dysfunction (2000-2008): The research focus at this stage gradually shifted to the clinical and basic research fields of sexual dysfunction, and he presided over the epidemiological survey of male reproductive health in Beijing and the epidemiological survey of treatment needs of male patients with sexual dysfunction in China, and published more than 20 academic papers.
3. Clinical and basic research work related to male infertility and male reproductive health (2008-present): At this stage, the focus of work gradually shifted to reproductive medicine, and the research focus was on male infertility and male reproductive health. The basic research of male infertility, the clinical epidemiological study of male infertility, the influence of carnitine on oligozoospermia, and the exploratory research on the diagnosis and treatment of azoospermia were carried out, while the clinical research of sexual dysfunction was still taken into account. He has successively obtained more than 4 million yuan in various scientific research funds and published more than 30 academic papers.
4. Engaged in popular science and health education for a long time. Health education programs 100 were produced in TV stations and radio stations at all levels, more than 500 health education articles were published in various newspapers, popular magazines and websites, and hundreds of health education lectures were held. His popular science works such as Night Ask 36, Men's Pillow Book and Solving Men's Problems have been printed in millions of copies, including Night Ask 36. Greatly promoted the popularity of the theme and its influence in the audience.