Weakness is a relatively common symptom. There are many causes of weakness, not only fever can cause weakness, for example, the human body may feel weak after fatigue, if the human body has a cold or if the human body does not get enough sleep, there are also symptoms of weakness, if the human body has a cold or other diseases, there are also signs of weakness. When the human body has abnormal liver function, there is also obvious discomfort of weakness. When weakness occurs in the body, the cause of weakness should be clarified and then treated symptomatically. If the weakness is caused by poor rest or fatigue, the symptoms of weakness can be relieved with additional sleep and rest. If the weakness is caused by other diseases, the symptoms of weakness can be controlled after active treatment of the original disease. If the weakness is caused by abnormal liver function, the symptoms will disappear after liver function is restored through liver protection treatment.