A mother's milk supply usually adjusts to her baby's needs after about 4 weeks of breastfeeding. Some mothers continue to make more milk than the baby requires, and this is known as 'oversupply'. Oversupply can make breastfeeding difficult for both mother and baby.

How long does oversupply last?

At this point, hormonal changes occur that make milk supply more stable and more in line with the amount of milk that baby needs. Sometimes babies of moms with oversupply or fast let-down get very used to the fast flow and object when it normally slows somewhere between 3 weeks to 3 months.

Does overactive letdown go away?

Overactive Letdown Tip #6: Express Off The Fast Flow

The good news is that many mothers find their overactive let-down reflex subsides at least by around 3 months.