Why does milk production increase during sleep?

Patient's question:

Postpartum for a month, I always leak milk when sleeping, making a mess everywhere, it's really very troublesome. Why does milk secretion increase during sleep?

Doctor's answer:

This is for a reason, because the pituitary gland secretes more prolactin at night than during the day, so nighttime breastfeeding is beneficial for producing more milk. It is important to regulate your mood and avoid various stimulating factors. Moms should pay attention to keeping their mood calm and relaxed, and can wear appropriate nursing bras to lift the breasts high, ensuring the nipple position is not below the horizontal line. When there is too much milk and you feel full, it is important to breastfeed promptly or use a breast pump to extract the milk to prevent inflammation.

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