Postpartum depression can make you feel restless, anxious, fatigued and worthless. Some new moms worry they will hurt themselves or their babies. Unlike the "baby blues," postpartum depression does not go away quickly. Very rarely, new moms develop something even more serious. They may stop eating, have trouble sleeping and become frantic or paranoid. Women with this condition usually need to be hospitalized.

The birth of a baby can trigger a jumble of powerful emotions, from excitement and joy to fear and anxiety. But it can also result in something you might not expect - depression. Experiencing depression after childbirth isn't a character flaw or a weakness. Sometimes it's simply part of giving birth. If you're depressed, prompt treatment can help you manage your symptoms - and enjoy your baby.

Depression can be described as feeling sad, blue, unhappy, miserable, or down in the dumps. Most of us feel this way at one time or another for short periods. But true clinical depression is a mood disorder in which feelings of sadness, loss, anger, or frustration interfere with everyday life for an extended time. Depression can be mild, moderate, or severe. The degree of depression, which your doctor can determine, influences how you are treated.

Physical changes after childbirth, a dramatic drop in estrogen and progesterone may trigger depression. The hormones produced by your thyroid gland also may drop sharply - which can leave you feeling tired, sluggish and depressed. Changes in your blood volume, blood pressure, immune system and metabolism can lead to fatigue and mood swings.

It's important to know the difference between normal postpartum emotional changes and ones that signal a need for further support. It's not just what you're feeling that indicates something may be amiss, but the frequency, intensity, and duration of those feelings. In other words, many new mothers feel sad and anxious periodically during the first few months after childbirth. But if you're crying all day for several days in a row or are having panic attacks, contact your doctor or midwife.

Postpartum depression is caused by changes in hormones and can run in families. Women with severe premenstrual syndrome are more likely to suffer from postpartum depression. Mild or moderate depression, either postpartum or otherwise, can be treated with medication or with psychotherapy, or, particularly for women with severe cases, a combination of the two. Women who have postpartum depression love their children but may be convinced that they're not able to be good mothers.

Postpartum depression can begin at any time within the first three months after delivery. It can seriously threaten both the woman and her baby. Since the mother is seriously ill, she may not be able to care for her baby as she would if she were well. The disease may make it hard for the mother to breastfeed or bond with her baby. For these reasons, postpartum depression is a threat to newborns.

During the postpartum period, up to 85% of women experience some type of mood disturbance. For most women, symptoms are transient and relatively mild (ie, postpartum blues); however, 10-15% of women experience a more disabling and persistent form of mood disturbance (eg, postpartum depression, postpartum psychosis).

Postpartum psychiatric illness was initially conceptualized as a group of disorders specifically linked to pregnancy and childbirth and thus was considered diagnostically distinct from other types of psychiatric illness. More recent evidence suggests that postpartum psychiatric illness is virtually indistinguishable from psychiatric disorders that occur at other times during a woman's life.