There are more reasons for general weakness in patients, which need to be diagnosed precisely, commonly as follows: 1, overexertion: patients can experience general weakness due to physical fatigue caused by overexertion; 2, mental factors: patients can also experience general weakness if they have excessive mental tension, anxiety, depression and other adverse emotions; 3, disease factors: patients can experience general weakness due to anemia, hypothyroidism, or cerebral hemorrhage, cerebral infarction and other cerebrovascular diseases.