Possible Causes of PND
Despite extensive and ongoing research into this form of depression, the exact cause is not entirely clear or straightforward. There is, however, considerable debate amongst professionals about this condition and a number of contributory factors are likely.
The following possible causes have been suggested:
Birth ExperienceSome women may feel that their birth experience failed to match up to their expectations. The feeling of being 'let down' can cause depression. A traumatic / difficult birth experience or a premature or unwell baby is sometimes reported by those who develop postnatal depression.
Biological factorsA small number of women who develop postnatal depression have a temporary thyroid gland defect associated with their mood difficulties. It has been suggested that some women are particularly vulnerable to the drop in sex hormones following birth.
There is yet, however, no firm scientific evidence in this regard and research into biological factors is still underway.