It is a well-known reality that depressive disorders have a significant negative impact on an individual’s physical and mental health, social functioning, and somatic activities. Patients with depressive disorders have a significantly lower evaluation of their general health than the norm, often have somatization symptoms, significantly reduced social functioning, and in severe cases, suicidal ideation and suicidal behavior, sometimes even the act of killing a loved one (called extended suicide or mercy killing, etc.). According to studies, about 66.7% of depressed patients have had suicidal thoughts and behaviors, and 15%-25% of depressed patients eventually succeed in suicide. A study showed that 90-93% of those who died by suicide met at least one or more diagnoses of mental disorders before death, with depression accounting for 50%-70% of all patients. Studies in the United States have shown that the annual suicide rate among people with depression is 83.3/100,000, which is more than seven times the general population suicide rate (11.2/100,000). A domestic study showed that the heart analysis of 571 cases of suicide deaths found that 40% were due to depression. Therefore, depression not only affects the quality of life of the patient, but also affects the harmony of the patient’s family and the whole society. Therefore, everyone should pay attention to depression, in fact, depression is not terrible, what is terrible is our ignorance of depression. Early detection and early treatment is still one of the most important ways to prevent and treat depression. Note: Expanded suicide, in a state of severe depression, the patient deeply feels that living in the world is difficult and desperate, and feels that life is worse than death, in this state of mind, a strong attempt to commit suicide, before committing suicide to kill their sick, weak or young relatives who cannot live independently (so that their relatives can leave the earthly world and get out of the sea of suffering), so it is also called “compassionate killing, mercy killing or family This is why it is also called “compassionate killing, mercy killing, or family suicide”. Patients often do not have any impairment of consciousness or thinking when they commit the crime, but can clearly recall the crime afterwards, recognize the illegality of the act, and anticipate the serious consequences of the act.