Irritability and inability to control emotions are usually related to one’s own personality, and may also be due to recent life and work stress and lack of sleep, which can be improved through travel, food, singing and other ways to release stress and self-regulation. If it cannot be regulated in these ways, it may be related to mental or physical illnesses, such as schizophrenia, depression, anxiety disorders, bipolar disorder, autism, as well as hyperthyroidism, sequelae of cerebral infarction, Alzheimer’s disease, etc. It is recommended to promptly seek medical attention for detailed examination and clear diagnosis and treatment. I. Psychiatric system disorders: 1. Schizophrenia: The prodromal period of this disease often shows changes in mood, with symptoms of depression and anxiety. Such as obvious mood swings, always feel unsafe around themselves, someone wants to hurt them, can be manifested as sensitive, suspicious, irritable, easy to hurt other people, unable to control their emotions; 2, depression, anxiety disorders: usually anxiety disorders and depression disorders can occur at the same time, can be manifested as excessive worry, nervousness about what is going to happen, unrelieved upset, can also be manifested as irritability, also accompanied by pessimism, Bipolar disorder: manifested as manic episodes, the symptoms are mainly high emotions, accompanied by exaggerated thinking, delusions, irritability, irritability, etc., even unable to control themselves to cause adverse consequences for themselves or others; 4, autism: the onset of the disease in infancy and early childhood, psychiatric symptoms can be combined with compulsive, impulsive, anxiety disorders, irritability, severe cases can appear self-harm, aggression and other behaviors The severe cases may show self-harm, aggression and other behaviors. Other systemic diseases: 1. Hyperthyroidism: Due to excessive secretion of thyroid hormones, patients have high emotions, are easily agitated, irritable, and cannot control their emotions. Patients will also have weakness, sweating, lethargy, increased appetite, protruding eyes and other manifestations; 2, post-infarction sequelae: some patients with cerebral infarction do not have timely treatment during the acute attack, resulting in the sequelae of the mental system during the recovery period of cerebral infarction, manifested as eccentricity, easy to lose temper, drop things, etc.; 3, Alzheimer’s disease: commonly known as dementia, mild can appear unclean, irritable, selfish and suspicious, etc.. It can also be manifested as personality disorders, such as hygiene, irritability, paranoia, etc. In severe cases, there is even loss of language function, incontinence, etc. In addition, if there is a serious physical disease, such as cancer, the patient’s mood swings may also appear in this situation. Therefore, it is necessary to consider the cause of the disease and to carry out timely treatment if the disease causes it.