The difference between hospital emergency and outpatient clinics: outpatient clinics are usually divided into various types of specialties, and for diseases that are more specialized, it is recommended to go to outpatient clinics. In addition, after discharge from the hospital, the review is also back to the specialist outpatient clinic. Chronic diseases, such as chronic hypertension, diabetes, heart disease, are all seen in specialist clinics. The hospital emergency department mainly undertakes some tasks of emergency or acute diseases, such as unstable vital signs, and acute attacks of chronic diseases, such as chronic heart, lung, brain and kidney diseases, are also seen in the emergency department. In addition, acute fever, with a temperature over 39 degrees, also falls under the category of emergency medicine. Acute pain, injuries, bleeding, fractures, and car accident injuries are generally seen in the emergency department.