Expressing 30ml of breastmilk at a time is normal if it is some time just after delivery, and over time it may be abnormal if the amount expressed is still 30ml.
There is no specific rule on how much breastmilk is normal to express at one time. There is usually no problem if it can meet the growth and development needs of the fetus. When the child is born, the amount of milk consumed is relatively small, and the amount of milk secreted by the mother at this time is also relatively small.
A few days after the child’s growth, the amount of milk needed will gradually increase, the mother’s secretion of milk will also increase, at this time 30ml of milk may be just enough to meet the child’s needs. However, as the child develops, the amount of milk needed will gradually increase, and 30ml of milk at a time will not be able to make the child full, which is not normal. Mothers can let their babies suckle on their breasts more often to promote milk secretion.