Chen (about 1 190 ~ 1270), also known as Linchuan, Southern Song Dynasty. He grew up in a family of three generations of doctors, often practicing medicine in the southeast, and accumulated rich clinical experience. 65438-0237 Professor of Medicine in Ming Dow College of Health Home. After long-term clinical and teaching practice, he found that there were many wrong records in the previous medical books on obstetrics and gynecology, and most of them seemed to be "sloppy and disorganized, with detailed plans but not ready".