FAQ: I am suffering from Thyroid can I breastfeed my baby? Will I be able to make enough milk?
Thyroid Gland plays an important part in lactation as it is connected with the regulation of prolactin (the hormone responsible for milk production) and oxytocin (the hormone responsible for ejecting the milk flow).
Types of Thyroid Dysfunction :
1) Hypothyroidism (Underactive Thyroid) -
This condition is developed when the TSH levels are high and the thyroid gland produces insufficient thyroid hormones. The symptoms include weight gain, intolerance to cold, depression, fatigue, hair loss, dry skin, heavy and prolonged menstrual flow etc. Most commonly, this is a result of Hashimoto's disease which is an autoimmune disease wherein the immune system attacks the thyroid gland causing underproduction of thyroid hormones.
A breastfeeding mother with hypothyroidism is likely to face low milk supply
2) Hyperthyroidism (Overactive Thyroid) -
This condition is developed when the TSH levels are low and the thyroid gland produces excessive amounts of thyroid hormones. The symptoms include weight loss, intolerance to heat, anxiety, fatigue, palpitations, increased pulse rate, light to no menstrual flow etc. Most commonly, this is a result of Grave’s disease wherein the antibodies attack the thyroid gland causing it to grow and over-produce the thyroid hormones.
A breastfeeding mother with hyperthyroidism is likely to face problems with the let-down reflex. Some women with hyperthyroidism have reported oversupply.
3) Postpartum Thyroiditis (PPT)
During pregnancy, the immune system of the mother is naturally suppressed to ensure that the developing foetus is not perceived as a threat and the immune system doesn't attack it.
After the birth of the baby, the immune system of the mother has heightened once again. This switch sometimes can cause ‘postpartum thyroiditis’. It is observed in 5%-7% of all pregnancies and maternal smoking and type-1 diabetes increase the risk of postpartum thyroiditis threefold.
Postpartum thyroiditis can manifest itself as hypothyroidism alone, hyperthyroidism alone or in many cases, as a combination of both wherein it typically starts with hyperthyroidism for a few weeks and then transitions into hypothyroidism for several months.
Most women with PPT recover fully. However, a small percentage can retain hypothyroidism.
Some breastfeeding women having PPT report supply issues and many others don't face any such issue
Impact on Breastfeeding
Is it safe to Breastfeed with Thyroid ?
Research* suggests that It is absolutely safe to breastfeed for a woman who is suffering from any of the three forms of thyroid dysfunction mentioned above. It is safe even if the mother is not taking medication to control or maintain her thyroid levels. There is no risk to the baby. Even in the autoimmune types of thyroid disease, the antibodies are too large to pass into the breast milk. In hypothyroid, even a mother with extremely high levels of TSH passes very low levels of TSH through her milk which is not a cause of paediatric concern. And in hyperthyroid, even a mother with very high levels of T4 and T3 passes on exceedingly low levels of these hormones into the breast milk. If the mother is on medication, there are always breastfeeding-friendly alternatives available.
[*Research - Lawrence & Lawrence 2011. Hale, 2017]
Tips to manage Breastfeeding with Thyroid :
How does it help?
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