It is very common for patients with bipolar disorder to only get angry at their family members, because patients with bipolar disorder, the symptoms of mania are not too serious, not in line with manic episodes, but only a kind of light manic episodes, manifested as irritability. For example, because of a little thing will be furious, or can not listen to a little opposition, the patient’s consciousness is relatively clear, there is a certain degree of self-control, so often with the contact closer family members appear irritable situation. To less familiar relatives and friends or strangers, patients tend to be overly enthusiastic, intimate, nosy, and like to interact when they are in a light manic state.