16-year-old boy easy to anger, may be the influence of external factors, may also be the manifestation of certain diseases symptoms, such as mania, hyperthyroidism, etc., should be timely consultation to identify the cause of the disease. 1. External factors: mostly considered by the influence of the family, if the husband and wife relationship is not harmonious, often quarrel, the child may also be affected by the emergence of personality irritability. 2. Pathologic factors: (1) Mania, related to mental stimuli, neuroendocrine disorders, their own psychological quality, social environment, etc., the main clinical symptoms are mania, their own mood fluctuations, easy to be angry, lose their temper, drop things during the attack, and hit and scold people in serious cases. (2) Hyperthyroidism, may appear talkative, nervousness and insomnia, anxiety and irritability, easy to be excited, inattentive, etc.; may be accompanied by palpitations (rapid heartbeat, often accompanied by panic), fatigue, fear of heat, excessive sweating, emaciation, hyperphagia, increased stools or diarrhea, and other manifestations. 16-year-old boy easy to anger, also does not exclude other factors caused by, it is recommended that if you exclude physiological reasons, you should promptly consult a doctor to clarify the cause of the disease, give targeted treatment.