Lactating mothers often worry that their milk is not enough to feed their babies, which will affect their babies’ growth and development. The following methods can be used to estimate whether the milk supply is sufficient: 1. Mothers can judge whether the milk supply is sufficient by the changes in their own breasts and the baby’s performance before and after feeding. Before breastfeeding, there is a feeling of fullness in the breasts and the local epidermal veins are clearly visible, and there is a feeling of giving milk when breastfeeding, and the breasts become soft after breastfeeding. When the baby sucks, you can hear a continuous swallowing sound, and sometimes milk will spill out from the corners of the baby’s mouth as he sucks, which means that the milk is sufficient. When the infant starts sucking, he or she often sucks rapidly and forcefully, and after 3-5 minutes, he or she will suck most of the milk, and then the sucking force becomes less. The baby will automatically release the nipple when he or she is full. Babies wake up after 2-3 hours of sleep at night during the neonatal period, and as the months increase, sleep for 5-6 hours at night, which suggests that the baby is getting enough each time. Crying is not necessarily a sign that the baby is hungry, but can be indicated by many reasons such as being too cold, too hot, uncomfortable and wanting to be held by the mother. The mother can learn to distinguish the different requirements of the baby from the cries. Observe how much the baby urinates. If the baby urinates more than 10 times a day and each time the amount of urine is not less, it means that the baby is getting enough milk every day.