If irritability and short temper are only temporary and can be relieved when stress is relieved or self-regulated, it cannot be called a “disease”, but just an emotional reaction. However, when it affects an individual’s school, work and life, further diagnosis and treatment is needed. Irritability and short temper can be caused by a variety of factors. If it is caused by personality problems, excessive stress, emotional tension and other emotional reactions, it can usually be improved through self-regulation. In addition, organic diseases such as cerebral arteriosclerosis, cerebral thrombosis, cerebral hemorrhage, coronary heart disease, etc., may affect the blood supply to the brain, resulting in irritability and other manifestations, which usually need to be treated for the original disease; patients with mania, schizophrenia and other mental illnesses, there are also irritability manifestations, which need to be treated in specialized psychiatric hospitals; women’s menstruation, menopause and other moods, which can improve on their own after they pass through the period, but when the symptoms are severe, they can also be diagnosed and treated. After that period, it can be improved on its own, but when the symptoms are serious, it is also necessary to consult a doctor. In short, there are many reasons for irritability and short temper, and when they are uncontrollable and accompanied by other physical and psychological discomfort, it is important to consider the impact of disease rather than purely personality problems.