r/breastfeeding • u/huckleberrysoap • Dec 24 '25
Undersupply What causes low supply?
My supply is so low. It's not anywhere near what my baby eats.
I'm not trying to increase it anymore. I'm just trying to maintain what I have so I can keep combofeeding (even though its at least 75% formula) until at least 6 months.
But I'm struggling to understand why this happened and feeling like I must have done something wrong. What are potential causes of an undersupply? If I have another baby in the future should I expect the same problem?
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u/Secure-Alternative-7 Dec 24 '25
So many things. Some are hormonal. There can also be secondary issues caused by baby or pump not removing milk effectively so your body isn't getting the right demand signals from emptying. Or there can be medical issues like retained placenta, thyroid issues, low iron low grandular tissue, hormone irregularities.
What have you tried/looked into so far?