It is possible that the mood irritability in the recent period is caused by the following reasons: 1. Physical diseases that cause mood irritability, such as endocrine disorders or abnormal thyroid function, these diseases are easily accompanied by a large temper, easily irritable or even very irritable problems. 2. Psychological diseases such as depression and anxiety disorders, these psychological diseases are easy to make people unstable, mood swings are large, easy to 3, encounter stressful events caused by, especially in high pressure, tension and other stressful events is easy to make people become depressed, irritable, anxious, etc..