Post-natal depression is associated more than would be expected normally with ante-natal problems (such as eclampsia), complicated labours and ceasarean deliveries. It is more common in women with a previous episode of post-natal depression, in women who are uncertain or unhappy about having a child, and in those who lack support in the form of a confiding relationship, including single mothers. Also women with a history of recurrent episodes of depression, and who discontinue antidepressant maintenance therapy during pregnancy are at a higher risk of a recurrence postpartum.