An empirical ethics analysis found that prohibiting breastfeeding in cannabis-using mothers is not supported by current evidence, may compromise maternal autonomy, and could worsen racial disparities in breastfeeding outcomes.
Obstetricians, lactation consultants, hospital administrators, and ethicists.
"Patient caught breastfeeding and instructed to stop" found in medical records
What the researchers found
Medical records revealed punitive language like "patient caught breastfeeding and instructed to stop." While plausible harms from breastmilk THC exposure exist, evidence of actual infant effects is limited and confounded. The well-established benefits of breastfeeding likely outweigh the uncertain risks of trace THC exposure. Restrictive policies may disproportionately affect minority populations.
Why it matters
Some hospitals prohibit breastfeeding when maternal cannabis use is detected, but this may cause net harm by denying well-established breastfeeding benefits based on uncertain cannabis risks.
The numbers in context
150 medical records reviewed. Punitive documentation language identified. Analysis weighed uncertain THC breastmilk risks against well-established breastfeeding benefits.
How the study worked
Mixed methods: retrospective qualitative review of 150 prenatal/postpartum medical records from 2017, scoping literature review of breastmilk marijuana exposure risks vs benefits of breastfeeding, and ethical analysis using principles of beneficence, autonomy, and justice.
What this study cannot tell us
Single academic hospital system. Small medical record sample. Ethical analysis reflects authors' interpretation. Does not provide definitive safety data on THC in breastmilk.
How to read the evidence
Empirical ethics study with medical record review and literature analysis, but not a clinical trial.
When this study was published
Published in 2022 with 2017 medical records.
The bigger picture
The ethical analysis raises concerns about compulsory toxicology screening triggering child welfare investigations, which disproportionately affects Black and minority mothers, potentially widening existing breastfeeding disparities.
Questions still open
- What THC levels in breastmilk, if any, actually harm infants? Could hospitals support breastfeeding while counseling cannabis reduction rather than enforcing cessation?
Common questions
Should mothers who use cannabis avoid breastfeeding?
Why is this an equity issue?
Read the original research
Patient caught breastfeeding and instructed to stop: an empirical ethics study on marijuana and lactation.
Journal of cannabis research, 4(1), 20
Citation
Gross, Marielle S; Le Neveu, Margot; Milliken, Kara A; Beach, Mary Catherine. (2022). Patient caught breastfeeding and instructed to stop: an empirical ethics study on marijuana and lactation.. Journal of cannabis research, 4(1), 20. https://doi.org/10.1186/s42238-022-00127-y
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