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High Estrogen Levels While Breastfeeding

by
author image Matthew Lee
Matthew Lee has been writing professionally since 2007. Past and current research projects have explored the effect of a diagnosis of breast cancer on lifestyle and mental health and adherence to lifestyle-based (i.e. nutrition and exercise) and drug therapy treatment programs. He holds a Master of Arts in psychology from Carleton University and is working toward his doctorate in health psychology.
High Estrogen Levels While Breastfeeding
High estrogen levels may create complications for breastfeeding mothers. Photo Credit Samantha Schroeder/iStock/Getty Images

During pregnancy, circulating levels of the sex hormones estrogen and progesterone rise to prepare your body for lactation. After you give birth, however, levels of these hormones drop as your body increases production of prolactin. As levels of this lactation-inducing hormone increase with decreasing estrogen levels, high estrogen levels after you give birth may make it difficult for you to breastfeed your baby.

Estrogen and Prolactin

In a typical pregnancy, estrogen levels rise to promote the development of milk ducts in your breasts. While high estrogen levels help to prevent you from lactating during your pregnancy, they also trigger the production of prolactin to prepare you for lactation after giving birth. Once prolactin levels reach a certain point, they prevent the ongoing production of estrogen. As such, estrogen levels typically drop toward the end of your pregnancy as prolactin levels rise, allowing you to breastfeed normally after you give birth.

Estrogen Dominance

While they typically drop after you give birth, estrogen levels may remain high despite your body's boost in prolactin production. This may be due to a condition known as estrogen dominance, which involves high levels of estrogen and low levels of progesterone. As these high levels of estrogen mimic those of pregnancy, your body may continue to behave as though pregnant after your body's birth. As such, estrogen dominance may block prolactin's milk-producing abilities, potentially preventing you from lactating after you give birth.

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Causes

High estrogen levels following pregnancy may arise from exposure to external sources of estrogen or estrogen-like chemicals. These may include hormone-replacement therapies, petrochemicals and solvents, which may be present in cleaning products, cosmetics, soaps and shampoos. Antibiotics, pesticides and growth hormones present in commercially farmed animal products and produce may also contribute to high estrogen levels, because these products can disrupt natural changes in hormone balance. Other causes may include obesity or excess body fat, high fat intake, liver disease, high alcohol consumption, magnesium and vitamin B6 deficiencies, and stress.

Treatments

Regular exercise may help to lower your estrogen levels by lowering stress and body fat, potentially reducing complications that may arise when trying to breastfeed. Reducing your fat and alcohol intake, eating more foods rich in vitamin B6 and magnesium, and replacing commercially-produced food with organically farmed products may also help to reduce post-delivery estrogen levels. Because these lifestyle changes may not have immediate effects, the use of an anti-estrogen drug, such as the steroid clomiphene, may help to quickly reduce estrogen levels and allow you to breastfeed properly.

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References

Demand Media