Breastfeeding and Postpartum Depression: An Overview and Methodological Recommendations for Future Research

Area of Science:

• Perinatal mental health
• Reproductive health
• Psychiatry

Background:

• Emerging research indicates a connection between breastfeeding and postpartum depression.
• The exact nature and directionality of this relationship remain unclear.

Purpose of the Study:

• To review the empirical literature on the relationship between breastfeeding and postpartum depression.
• To explore potential underlying mechanisms linking breastfeeding and postpartum depression.

Main Methods:

• Literature search of PubMed and PsycINFO using keywords: breastfeeding, postpartum depression, perinatal depression, postnatal depression.
• Analysis of diverse methodologies and approaches used in existing studies.

Main Results:

• Studies have examined breastfeeding intention, initiation, duration, and dose in relation to postpartum depression.
• Significant methodological variations exist across studies, complicating findings integration.

Conclusions:

• Methodological inconsistencies hinder a clear understanding of the breastfeeding-postpartum depression link.
• Recommendations for future research include standardized protocols, clinical interviews, clear variable definitions, defined postpartum periods, prospective designs, and consideration of risk factors.