It’s completely natural for newborns to shed some weight in the first few days of life. Understanding why this happens can ease new parent worries and help identify when extra care is needed.
The First Week Weight Shift
Shortly after birth, babies often lose between 5% and 10% of their body weight. This may sound alarming, but it’s a normal part of early development. Most infants begin to gain it back by the end of the first week.
Natural Causes Behind Early Weight Drop
Several harmless factors contribute to this early weight reduction:
- Fluid release from the body after leaving the womb
- Initial bowel movements (meconium)
- Learning to feed, especially while waiting for breast milk supply to increase
These changes cause a temporary dip that usually resolves quickly.
What’s Within the Healthy Range?
A weight loss of up to 10% of birth weight is considered safe for healthy newborns. Most babies return to their original weight by 10 to 14 days old.
Signs Weight Loss May Be a Concern
Be watchful if your baby:
- Drops more than 10%
- Shows low energy or feeding difficulty
- Has fewer than 6 wet diapers a day after day 5
These could signal a need for feeding support or medical review.
When Medical Advice Becomes Essential
Always reach out to your pediatrician if:
- Birth weight isn’t regained by 2 weeks
- Feeding struggles continue
- You notice symptoms like dry mouth, sunken eyes, or low diaper output
Timely help ensures your baby stays healthy and nourished.
Healthy Growth Benchmarks
Once feeding is established, babies usually gain:
- 150–200 grams (5–7 ounces) per week during the first three months
Tracking weight during checkups helps confirm steady progress.
Feeding Tips to Support Growth
For breastfeeding families, early challenges may slow weight gain. Focus on:
- Ensuring a deep latch
- Offering both breasts each feed
- Feeding 8–12 times in 24 hours
Consider consulting a lactation expert if needed.
Wrapping Up: What Matters Most
Initial weight loss is a normal part of newborn life. With close monitoring, good feeding habits, and regular checkups, your baby will be on track in no time. When in doubt, trust your instincts and speak to your doctor.
