Why didn't Yao Gui 'an see a doctor?

Yao Guian chose not to see a doctor for two reasons: First, his condition was not serious. This shows that Yao Gui 'an's medical skills may not be able to cope with a more serious illness, so he chose not to continue his diagnosis and treatment. Secondly, he specializes in reviving critically ill cancer patients who were rejected by Beijing Shanghai Hospital. This may mean that he may lack the necessary professional knowledge and skills for the diagnosis and treatment of general diseases, or he may not be able to provide effective treatment. Therefore, he chose not to see a doctor, probably to avoid unnecessary risks and injuries to patients.