1, doctor: the name of a medical officer in the Zhou Dynasty, equivalent to a doctor in later generations.

2. Doctor: Since the Song Dynasty, all medical officers with more than five grades in Taiji Hospital have been called doctors, and the word doctor has become a respectful name for doctors.

3, Langzhong: As a doctor, the name began in the Song Dynasty, and the south used to call the doctor Langzhong.

4, sitting in the hospital: sitting in the hospital is a Chinese medicine doctor who gives patients a pulse in a Chinese pharmacy.