Other known risk factors include:

• unplanned/unwanted pregnancy

• history of trauma (sexual abuse has strong correlations)

• infertility

• lack of healthy attachment as a child; adverse childhood experiences

• intimate partner violence

• difficult pregnancy, labor or delivery

• loss (recent or unresolved; including pregnancy/infant loss

• lack of support; feelings of isolation

• unmet expectations (can be related to breastfeeding, relationship changes, role changes)

• certain personality traits: "perfectionist/type A"

• Stressors: relationship strain/financial strain/loss of job

• Adoption difficulties/adjustment