Newborns cannot clearly express their needs. When feeding, many mothers worry their babies aren't getting enough. In fact, babies do signal when they're not full. So what are the signs that a baby hasn't eaten enough?
These nine signs indicate a baby hasn't had enough to eat (Public Health Network)
9 Possible Signs Your Baby Isn't Full
1. After 3 days of birth, fewer than 6 wet diapers per 24 hours.
2. After 3 days of birth, still passing black, green, or brown stools.
3. Between 4 days and 4 weeks after birth, fewer than 3–4 bowel movements per day.
4. Breastfeeding fewer than 8 times within 24 hours. Or, despite frequent feedings, the baby remains fussy and restless.
5. The baby appears unusually "quiet," rarely cries, and sleeps continuously for over 4–6 hours.
6. The baby shows signs of hunger but does not feed well, such as turning away from the breast or bottle.
7. The baby appears weak or lethargic.
8. The baby has a fever or shows signs of illness.
9. The baby has a decreased appetite or refuses to feed.

5. The baby appears unusually "quiet," rarely cries, and sleeps continuously for more than 4 to 6 hours.
6. Although the mother's breasts produce milk, no swallowing sounds are heard during feeding.
7. After 5 days postpartum, milk cannot be easily expressed from the breasts.
8. The mother experiences nipple pain during most feedings, with noticeable engorgement (nipples remain hard before feeding and do not soften afterward).
9. After 5 days, the baby gains less than 15–30 grams daily, and by day 10, the baby's weight has not returned to the birth weight.
Special Reminder:
Don't feed at every cry.
From birth, babies have various needs, but crying is their only way to express them. Some new mothers assume crying means hunger and rush to feed.In reality, babies often cry due to a wet diaper, needing affection, feeling sleepy, or experiencing discomfort. First determine the true cause of the crying; feeding at every cry can easily lead to overfeeding. The above outlines signs that a baby may not be getting enough to eat. Now that you understand, remember that a baby's cry can also express different emotions. Learn to observe your baby, and may every child grow up healthy.