There isn’t a single test to diagnose depression. However, your doctor can make a diagnosis based on your symptoms and a psychological evaluation. In most cases, your doctor will ask a series of questions about your moods, appetite, sleep pattern, activity level, and thoughts.
Because depression can be linked to other health problems, your doctor may also conduct a physical examination and order blood work. Sometimes thyroid problems or a vitamin D deficiency can trigger symptoms of depression.
Do not ignore symptoms of depression. If your mood doesn’t improve or gets worse, seek medical help. Depression is a serious mental illness with risks of complications. Depression not only affects you, but also your loved ones. If left untreated, complications include: