Because the symptoms of mild depression are mild, mild depression often starts slowly and is often not easily taken seriously until the symptoms become obvious and begin to alert the patient and those around them, then the condition has also progressed to a serious stage and is more complicated to treat. So, how can depression be detected early? What are the common manifestations of mild depression? Clinical experience suggests that the following manifestations are likely to be related to mild depression. If these manifestations exist for a long time, it is more important to be alert and patients should go to the hospital for examination to avoid further development of the disease or even accidents. 1.Unexplained physical discomfort: Patients with mild depression are often accompanied by a variety of physical symptoms, such as headache, back pain, limb pain, lumbago, etc., but the cause is unknown, and no organic lesion can be found in the hospital examination. Some cases also have unexplained abdominal distension, diarrhea, anorexia, nausea and stomach discomfort, or unexplained panic attacks, palpitations, and discomfort involving various systems and organs of the body, although all kinds of tests are normal, but the patient will be suspicious, especially suspected of having a serious illness, and constant medical examination is difficult to release their doubts. 2, always feel “too tired to live”: some depressed patients in the early stage will feel depressed, sullen, feel too tired to live. This emotional reaction can also occur in normal people, but in depressed patients will exist for a long time. Some patients are “apathetic” to excitement, for example, they do not get excited when they meet something happy, but when they do not like it, they get angry, and they are angry at the first touch, easily agitated, sensitive and suspicious, stubborn, and always feel bad. 3, similar to “neurasthenia”: some patients will have sleep disorders such as persistent insomnia and early awakening, forgetfulness, fatigue, headache and other symptoms are also one of the common early manifestations of mild depression, some patients are often diagnosed as “neurasthenia”. In addition, patients may experience a variety of uncomfortable feelings, such as inexplicable feelings of emptiness, fear, loneliness and compulsion. Sometimes also manifested as fatigue, weakness, slow reaction, inattention, memory loss, slow brain reaction. 4, feel that life “no motivation”: most of the patients with mild depression can go to work, work, study and labor, but lack of initiative and aggressiveness, have the experience of living through the day. Aversion to participate in group activities, like to be alone.