For a person considered to be suffering from a major depressive disorder, symptoms must either be new or must be noticeably worse compared to what they were prior to the episode. These symptoms also have to persist for most of the day, nearly every day for at least two consecutive weeks. The episode must also be accompanied by clinically significant distress or impaired functioning.

If you are already receiving treatment for depression, you may have noticed that you are still experiencing symptoms. It is important that you discuss these symptoms with your doctor to determine whether or not changes to your treatment plan are required.

Whether you suspect you have depression or are currently receiving treatment, complete the following checklist and talk to your doctor.