Weakness without fever is mostly seen in the following cases: 1. Mental depression, patients often have a long period of mental stress or mental tension caused by the main manifestations of depressed mood, reduced interest in the surrounding things. Some patients can also be accompanied by loss of appetite, bloating, insomnia and other somatization symptoms, usually to maintain an optimistic and cheerful mood, do not give themselves too much pressure, appropriate participation in sports and social activities, to maintain a good sleep, when necessary, it is recommended to go to the Department of Psychiatry for consultation. If the symptoms are obvious, you can take oral paroxetine, Dextran, etc. 2, fatigue syndrome, mostly seen in patients who work long hours or heavy physical labor, patients are often accompanied by loss of appetite, abdominal distension, irritability, agitation and other symptoms. Symptoms can be relieved after sufficient rest. Patients should pay attention to the combination of work and rest at work, avoid excessive work intensity, and ensure sufficient sleep.