There are many reasons for irritability, mainly the following: first, anxiety, depression and other psychological disorders caused by anxiety, depression is a very common mental, psychological disorders, it is easy to cause anxiety, irritability, temper, easy to provoke, some trivial things will be a big temper, and even quarrel with people, fights, etc.. If you have this kind of mental illness, you must actively carry out treatment, especially consider taking medication. Secondly, it may be caused by social factors such as stress, especially economic pressure, marital discord, interpersonal tension, family conflicts, or stressful events, such as facing high school entrance exams, marriage, divorce, childbirth, etc., which can easily cause anxiety, irritability, depression and other negative emotions, and should be adjusted actively. Third, it may be caused by somatic diseases, such as endocrine disorders, common abnormalities in thyroid hormone levels, or hyperthyroidism, such as hyperthyroidism is easy to cause panic, hand trembling, temper, irritability, etc., these diseases also need to be actively treated. The above causes are the more common ones, but there are also other causes that can be actively treated and seen.