You can judge whether the milk is sufficient or not by the sound of your baby swallowing, how he/she behaves after breastfeeding, the number of bowel movements, and the weight gain. It is important to know and judge the adequacy of breast milk, not only can it help you arrange the correct nursing time and sucking amount for your baby, but also can be adjusted from the dietary aspect according to the amount of milk secretion. Generally, you can judge whether the amount of milk is sufficient from several aspects of “observation” 1, the baby can hear the sound of swallowing a large mouthful every 2~3 times on average, so about 15 minutes continuously the baby is basically full. If the milk is thin and you can’t hear the sound of swallowing milk every time you feed your baby, it is possible that the milk is not enough. 2. If he smiles at you after feeding, or does not cry, or sleeps quietly immediately, it means that the baby is full. If he still cries after feeding, or if he bites the nipple and does not let go, or if he wakes up after less than 2 hours of sleep, it means that the amount of milk is not enough. 3. Pay attention to the frequency of urination and defecation. If your baby urinates 8~9 times a day and has 4~5 stools with a golden yellow consistency, these can indicate that the amount of milk is enough. If there is not enough, not much urine, less stool, and green thin stool, you have to increase the number of feedings. 4. Full-term newborns gain 25 grams of weight per day for the first month, 720-750 grams for the first month, and 600 grams for the second month. If you lose weight, you may either be sick or not feeding properly. Insufficient feeding or too thin milk resulting in insufficient nutrition is one of the factors of weight loss.