Depression consists of several types of disorders, the most common of which are major depressive disorder, dysthymic disorder, and bipolar disorder. There are also other, less common types of depression.
Major Depressive Disorder
This is also called major depression, and is diagnosed when a patient experiences at least five symptoms of depression for 2 weeks or more and these symptoms make it difficult for them to function normally at work, school, or in their daily activities. The symptoms are sadness most of the day, loss of pleasure or interest in activites, significant weight change, insomnia or excessive sleep, agitated movement or very slow movements, fatigue or loss of energy, feeling worthless or guilty, indecisiveness and loss of concentration, thoughts of death or suicide.
Learn more about Depression Diagnosis
This simple questionnaire is designed to help you determine if you have symptoms of depression and could benefit from professional help.