In order to accurately serve the health needs of the cadres and workers, and provide multi-level, all-round, high-quality health services, on June 5, the trade union of Beijing Investment Promotion Service Center invited Professor Jia Xiaoqiang, Director of Surgery Department and Anorectal Department of Xiyuan Hospital, Chinese Academy of Traditional Chinese Medicine to give a lecture on the theme of "Keep a Good Guard of Our Rear Area--Anal Intestinal Health Thematic Lecture" in the 1st conference room. Professor Jia gave a detailed and comprehensive explanation on the status quo of anorectal diseases, the main factors of the disease, the symptoms and the basic methods of treatment. He focused on the prevention measures of the five aspects of blocking anorectal diseases that he had reviewed from many years. After the lecture, Professor Jia gave professional answers to the health issues that everyone care about. More than 60 representatives from the central government and some employees of foreign-invested enterprise attended the event.