Types of Depression

Depression will often accompany addiction, or occur in the family and friends of alcoholics. The onset of depression may follow a traumatic experience or serious health condition, and sometimes various factors will occur in succession, leading from a temporary episode of grief or a case of "the blues" to a serious illness. It can be difficult to recognize in yourself or someone else, as many symptoms may also occur for different reasons, such as a medical condition or hormonal imbalance, or changes due to age. There is a wide range of degrees and types of depression, as follows. I hope this helps in pinpointing the contribution depression may be making to problems within families and friendships and lead to increased support and compassion. Often simply putting a name to a problem brings immense relief, because then one has the necessary information to know how to proceed, or at least where to begin to seek help.  

Here is an overview of types of depression from NIMH:

What are the different forms of depression?

There are several forms of depressive disorders.

Major depressive disorder, or major depression, is characterized by a combination of symptoms that interfere with a person's ability to work, sleep, study, eat, and enjoy once-pleasurable activities. Major depression is disabling and prevents a person from functioning normally. Some people may experience only a single episode within their lifetime, but more often a person may have multiple episodes.

Depression is a common but serious illness. Most who experience depression need treatment to get better.

Dysthymic disorder, or dysthymia, is characterized by long-term (2 years or longer) symptoms that may not be severe enough to disable a person but can prevent normal functioning or feeling well. People with dysthymia may also experience one or more episodes of major depression during their lifetimes.

Minor depression is characterized by having symptoms for 2 weeks or longer that do not meet full criteria for major depression. Without treatment, people with minor depression are at high risk for developing major depressive disorder.

Some forms of depression are slightly different, or they may develop under unique circumstances. However, not everyone agrees on how to characterize and define these forms of depression. They include:

• Psychotic depression, which occurs when a person has severe depression plus some form of psychosis, such as having disturbing false beliefs or a break with reality (delusions), or hearing or seeing upsetting things that others cannot hear or see (hallucinations).
• Postpartum depression, which is much more serious than the "baby blues" that many women experience after giving birth, when hormonal and physical changes and the new responsibility of caring for a newborn can be overwhelming. It is estimated that 10 to 15 percent of women experience postpartum depression after giving birth.¹
• Seasonal affective disorder (SAD), which is characterized by the onset of depression during the winter months, when there is less natural sunlight. The depression generally lifts during spring and summer. SAD may be effectively treated with light therapy, but nearly half of those with SAD do not get better with light therapy alone. Antidepressant medication and psychotherapy can reduce SAD symptoms, either alone or in combination with light therapy.²

Bipolar disorder, also called manic-depressive illness, is not as common as major depression or dysthymia. Bipolar disorder is characterized by cycling mood changes—from extreme highs (e.g., mania) to extreme lows (e.g., depression). More information about bipolar disorder is available.

And from the Mayo Clinic:

Depression symptoms include:

• Feelings of sadness or unhappiness
• Irritability or frustration, even over small matters
• Loss of interest or pleasure in normal activities
• Reduced sex drive
• Insomnia or excessive sleeping
• Changes in appetite — depression often causes decreased appetite and weight loss, but in some people it causes increased cravings for food and weight gain
• Agitation or restlessness — for example, pacing, hand-wringing or an inability to sit still
• Irritability or angry outbursts
• Slowed thinking, speaking or body movements
• Indecisiveness, distractibility and decreased concentration
• Fatigue, tiredness and loss of energy — even small tasks may seem to require a lot of effort
• Feelings of worthlessness or guilt, fixating on past failures or blaming yourself when things aren't going right
• Trouble thinking, concentrating, making decisions and remembering things
• Frequent thoughts of death, dying or suicide
• Crying spells for no apparent reason
• Unexplained physical problems, such as back pain or headaches

For some people, depression symptoms are so severe that it's obvious something isn't right. Other people feel generally miserable or unhappy without really knowing why.
Depression affects each person in different ways, so symptoms caused by depression vary from person to person. Inherited traits, age, gender and cultural background all play a role in how depression may affect you.

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