For somatic diseases, a decrease in infusion with different shades is more characteristic: anxiety, sadness, apathy. In the occurrence of depressive disorders, the influence of psychotrauma (the illness-trauma itself), somatogeny (the disease as such) and the personality characteristics of the patient are closely intertwined. The clinical picture of depression is variable depending on the nature and stage of the disease and the prevailing role of one or another factor. So, with a long course of the disease, a depressed mood can be combined with discontent, grouchy, picky, capricious.
If anxiety, fear, sometimes with suicidal thoughts, is more characteristic in the early stages of the disease, then with prolonged severe course of the disease, indifference with a tendency to ignore the disease may prevail. Significantly increased mood in the form of complacency, euphoria. The appearance of euphoria, especially in severe somatic diseases (cancer, myocardial infarction) is not a sign of recovery, but a "harbinger" of an unfavorable outcome and usually occurs in connection with oxygen starvation of the brain. The appearance of euphoria is usually accompanied by anosognosia (denial of one’s own illness), which poses a serious danger to the patient due to their underestimation of the severity of their condition and, as a result, of directed behavior.