Chief physician, professor, doctoral supervisor of Huashan Hospital, Fudan University. He has carried out clinical, scientific research and teaching work in Surgery for more than 30 years, and established and developed minimally invasive surgery and obesity hernia surgery in Huashan Hospital. He has presided over a number of national research funds, published more than 80 papers, and obtained more than 10 national patents.

Dr. Yao’s main practices include but are not limited to the following conditions:
· Minimally invasive treatment and multidisciplinary collaborative management of obesity and obesity-induced metabolic diseases such as type 2 diabetes mellitus, hypertension, hyperlipidemia, sleep apnea syndrome, polycystic ovarian syndrome. Repair surgery for abdominal wall and limbs skin relaxation after weight gain and weight loss. Originally created NissanPlus technology for the treatment of obesity.
· Minimally invasive treatment and functional reconstruction for parastostomy hernia, postpartum rectus separation, incisional hernia, umbilical hernia, abdominal wall hernia and inguinal hernia. Originally created the Lap-re-Do technology to treat parastomal hernia and LAMP to repair inguinal hernia.
· Minimally invasive treatment of gastroesophageal reflux disease (GERD) and hiatal hernia.