If it is necessary to issue medical documents such as sick leave notes, health status certificates, physical examination reports, etc., the doctor should explain the condition, symptoms, course of treatment or the reasons for the need to issue certificates in detail, and the doctor will decide whether to issue certificates according to the actual situation and medical judgment. All certificates issued by doctors must comply with medical ethics and legal provisions, and must be realistic and cannot be issued at will. If the doctor thinks that the illness or condition does not meet the requirements for issuing a certificate, then the doctor has the right to refuse to issue it.