Bipolar Affective disorder is a very common condition in Mental Health Services in both Primary and Secondary Care. However, it is often not suspected and consequently it is both underdiagnosed and inappropriately managed. This is a cause for concern because patients who are inadequately treated for bipolar disorder can be at high risk of suicide. Patients with bipolar disorder are often misdiagnosed as having recurrent unipolar depression; the explanation for this is that although they often have recurring episodes of hypomania and depression, the hypomania is not identified by the doctor and misinterpreted as normality by the patient.