How do "typical" depression and post partum depression differ?

Severity, timing: Postpartum depression usually occurs within a year of delivery and is potentially more severe and dangerous than major depression. Although there are often mild symptoms of depression after most births, PPD is more severe, a medical emergency. If you have a history of depression or bipolar it's vital to meet with your doctor throughout your pregnancy to plan a strategy to address this pre-delivery.

Timing: Post partum depressions generally have similar characteristics as a more typical major depression. Symptoms, course and treatments are generally the same. The potential danger is that of care of the newborn child and family, in addition to the depression of the new mom. Consultation with the pediatrician and psychiatrist are best.