Part Of the BePeace Newborn 101 series
Most newborns lose some weight after birth and regain it naturally within the first 10–14 days.
Poor weight gain in newborn is often related to feeding difficulty, dehydration, or underlying conditions like newborn jaundice.
Essential First Guides For Every Parent
What is normal?
- Babies commonly lose up to 7–10% of birth weight in the first 3–5 days
- Weight usually starts increasing after Day 5
- Birth weight is regained by 10–14 days
- After regaining, babies gain ~20–30 grams/day (average)
- Breastfed babies may gain slightly slower than formula babies in early days
What is recommended?
- Feed frequently (8–12 times/day for breastfed babies)
- Ensure baby is latching and feeding effectively
- Do not restrict feeding duration
- Monitor wet diapers daily (good sign of intake)
- Weekly weight check in first month (if possible)
Is this serious?
Usually no. Early weight loss is expected in newborns.
But poor or delayed weight gain may indicate:
- Inadequate feeding
- Poor latch
- Illness
- Dehydration
What should I do?
- Feed baby more frequently
- Wake baby for feeds if sleepy
- Check proper breastfeeding position and latch
- Avoid long gaps (>3 hours) between feeds
- Track urine and stool output
- Reassess feeding technique if weight not improving
When to see a doctor
- Weight loss >10% of birth weight
- Baby not regaining weight after 14 days
- Very few wet diapers (<4/day after Day 4)
- Baby very sleepy and not feeding
- Weak suck or poor latch
- Jaundice associated with poor feeding
Common Parent Questions
Yes. Most newborns lose some weight in the first few days after birth. This is normal and expected.
Weight gain varies between babies. Steady feeding, good urine output, and alertness are often reassuring signs.
Weight gain varies between babies. Steady feeding, good urine output, and alertness are often reassuring signs.
Frequent feeding, proper latch, and calm feeding time usually support healthy growth.
Consult a doctor if your baby is not feeding well, appears weak, has very few wet diapers, or continues losing weight beyond the first few days.
No. Daily weight checks often increase anxiety without helping. Growth is better assessed over time.
Growth in newborns is gradual. Consistent care matters more than numbers on a single day.
Related topics you may find helpful
“Baby Just Born – What is Normal in the First 24 Hours?”
Newborn Jaundice(Yellow Skin babies)-What is normal & When to Worry
Why do newborn babies cry so much (When to worry)