Intimate-partner physical and psychological violence in pregnancy and breastfeeding outcomes: findings from a UK prospective birth cohort of first-time mothers
This prospective UK birth cohort study of first-time mothers found that experiencing psychological intimate partner violence during pregnancy, regardless of whether it was perpetrated by the partner or the mother, significantly increases the likelihood of not exclusively breastfeeding at six weeks postpartum, whereas physical violence showed no such association.
Original paper licensed under CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/). This is an AI-generated explanation of the paper below. It is not written or endorsed by the authors. For technical accuracy, refer to the original paper. Read full disclaimer
Imagine your body as a high-tech garden, where the goal is to grow a special, nutrient-rich food for a new life. For the first six months, the best way to feed a baby is with this garden's own produce, a process called breastfeeding. But gardens are sensitive; they need calm weather, good soil, and a supportive gardener to thrive. Sometimes, the weather gets stormy before the seeds even sprout. One of the most damaging storms a mother can face is Intimate Partner Violence (IPV). Think of IPV not just as a physical fight, but as a toxic fog that can settle over a relationship. This fog comes in two main flavors: the "sledgehammer" kind (physical violence, like hitting or kicking) and the "whispering wind" kind (psychological violence, like humiliation, threats, or constant put-downs). While we know that a stormy relationship is bad for a mother's mental health, scientists have been trying to figure out exactly how this storm affects the garden's ability to produce milk. Does the sledgehammer stop the milk flow, or is it the whispering wind that does the real damage? And does it matter if the wind blows from the partner or from the mother herself?
This study, conducted by researchers in the UK, decided to dig into the soil to find the answer. They followed a group of first-time mothers, checking in on them while they were pregnant and again a few weeks after the baby arrived. They asked the mothers about their plans to breastfeed and whether they were still doing it exclusively at six weeks. Crucially, they didn't just lump all violence together; they separated the "sledgehammer" (physical) from the "whispering wind" (psychological) and even checked who was doing the whispering or hitting.
Here is what they found, and it's a bit like discovering that the garden was ruined not by a sudden hailstorm, but by a slow, persistent drought. The researchers discovered that psychological violence during pregnancy was a major troublemaker. About 32% of the mothers in the study experienced this kind of emotional abuse. The data showed that mothers who faced this "whispering wind" were 2.37 times more likely to stop exclusively breastfeeding by six weeks compared to those who didn't. It's as if the constant stress of being humiliated or threatened drained the gardener's energy, making it much harder to keep the milk flowing.
On the other hand, the "sledgehammer" didn't seem to have the same direct effect on the milk supply. Even though about 19% of the mothers experienced physical violence, the study found no clear link between physical hitting and stopping breastfeeding. This suggests that for this specific outcome, the chronic stress of emotional abuse might be more damaging than the physical acts themselves, at least in this group of mothers.
The researchers also played detective to see if it mattered who was doing the abusing. They wondered if a mother being hit by her partner was different from a mother hitting her partner, or if the emotional abuse came from her or from him. The results were surprisingly similar: whether the mother or the partner was the one doing the psychological hurting, the link to stopping breastfeeding was about the same size. This hints that the problem might be the overall "weather" of the relationship—the conflict and dysfunction—rather than just who is holding the stick or the microphone.
Interestingly, the study found that these storms didn't seem to stop mothers from planning to breastfeed. Most moms intended to feed their babies this way, regardless of the violence. The trouble started later, after the baby was born, when the stress of the relationship made it harder to keep going. The only thing that clearly stopped moms from even planning to breastfeed was smoking during pregnancy.
In short, this research suggests that while physical violence is a terrible thing, the invisible, chronic stress of psychological abuse might be the specific force that makes it so hard for new mothers to stick with breastfeeding. It's a reminder that to help a garden grow, we need to clear away the toxic fog, not just fix the broken fence. The study authors note that because this was a specific group of mothers, we need more research to be sure, but the signal is strong: the emotional climate of a relationship matters deeply for a baby's first meal.
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