 Here are some signs to see a doctor for bipolar disorder. You need to know that there will be extreme mood swings which is occurring for a long time that is for at least more than two weeks wherein the individual might be extremely happy and unusually happy in appropriate to the situation beyond necessary limits. Next you need to know or a sign that you can think about is when there is a disturbed sleep patterns. People going through bipolar disorders may have reduced need for sleep or an increased sleep also. Then there will be an impaired functioning in their day to day life that is their usual routine work like in their school, college or occupational life or in their family life might get affected for a considerable period of time that can really hamper one's functioning and overall quality of life.