There are many causes, including:
Hormones
Your hormone levels rise when you’re pregnant. After your baby is born, they drop suddenly. This quick change can trigger depression in some women. (If you ever feel moody before you get your period, you know how hormones can affect you.)
History of depression.
If you’ve had depression before, or it runs in your family, you may be more likely to have postpartum depression.
Stress and problems.
If you didn’t want to be pregnant, or your partner and family don’t help you care for your baby, you’re more likely to become depressed as a new mom. The condition is also more common among women with money issues, problems with drugs or alcohol, or other big sources of stress.
