This is a retrospective and prospective designed study, included hospitals are 1:1 assigned into two groups: ①Interventional hospital, which will receive 3-month medical education; ②Non-interventional hospital, which will not receive 3-month medical education. During 1 month before education, all the electronic records of outpatients and inpatients who visit the included rheumatologists will be collected and the data of test and evaluation results of spondyloarthritis (SpA) patients diagnosed according to new Assessment of Spondylo-Arthritis International Society (ASAS) criteria will be collected from outpatient electronic records and inpatients medical charts; in the 3 months after education, the same data will be collected and compared with the data before education, and the impact of medical education on physician behaviour will be analyzed. Meanwhile, the understanding and acceptance level will be evaluated by the questionnaire, the differences before and after education and the impact of education on physician cognition will be evaluated.

Interventional hospital will be selected based on following criteria:

1. having complete outpatients and inpatients electronic records;
2. more than 50% of registrars and/or consultants in the department participated the professional education event;
3. the department head is willing to participate the clinical audit and provide the information from outpatients and inpatients records for data collection;
4. except for rheumatic diseases have been clearly diagnosed.

Non-interventional hospital will be selected based on following criteria:

1. having complete outpatients and inpatients electronic records;
2. no professional education event covered;
3. the department head is willing to participate the clinical audit and provide the information from outpatients and inpatients records for data collection;
4. except for rheumatic diseases have been clearly diagnosed.