Poor mood first affects the central nervous system such as the brain, and then affects the vegetative nervous system, the endocrine system and the immune system, and through the intermediary of these systems, finally causes lesions in the internal organs, thus leading to psychosomatic diseases. The etiology and pathogenesis of dysphoria may have some relationship with psychological factors, social factors, etc. It is also believed that this is a protective response of the organism to acute stress. We should examine the following 7 aspects when examining whether a person has a bad heart after all: 1, there must be psychological factors. 2, through the examination, can find somatic symptoms, positive signs, can find a clear organic lesion. 3, the patient has certain genetic qualities, character traits or psychological defects. In other words, it is this type of patients because of their own characteristics, resulting in an unstable psychological state, easily affected by external stimuli. 4, the presence of factors of psychosocial tension stimulation. This is particularly important for the diagnosis of psychosomatic diseases. In the process of development of psychosomatic diseases, there must be stimulation of psychosocial factors, and such stimulation is either longer in time or more intense in intensity, or both, and they act for a long time, leading to long-term instability of the patient’s state of mind, which eventually leads to psychosomatic diseases. 5, psychosocial tension stimulation and the onset of the disease have a close temporal relationship. Generally speaking, there should be adverse stimuli first, and then the occurrence of psychosomatic diseases, adverse stimuli and the onset of the disease cannot be reversed, in that case, the disease is not caused by psychological stimuli, certainly not psychosomatic diseases. In addition, it will not be a number of years after the end of the stimulus before the onset of disease. If a physical disease occurs at this time, it is obvious that it is far-fetched to link it with the stimulation in early years. 6, the evolution of psychosomatic diseases and psychosocial stimuli show a positive proportional relationship. In other words, the stronger the stimulus and the longer it lasts, the heavier the manifestation of psychosomatic disease will be; conversely, if the stimulus becomes weaker, the manifestation of psychosomatic disease will be reduced accordingly. 7, if the pure biomedical treatment measures without psychological adjustment, the treatment effect is poor. Bad mood generally does not require special treatment, but family members should help patients through this stage. Psychotherapy is given appropriately to eliminate anxiety. Previous history of affective disorders neurotic depression, etc. should be taken as a precaution to try to avoid the occurrence of postpartum dysphoria or its development into postpartum depression and postpartum psychosis.