Many new parents worry about whether their baby is gaining enough weight. You feed them, burp them, change them—but still wonder if they are growing as they should. The doctor says your baby’s growth is good, but your home scale shows different numbers every day. Sound familiar?
Weight Gain in Newborns
Understanding growth is important, as every baby gains weight at their own pace. Newborns typically lose 5-10% of their birth weight in the first few days due to fluid loss and adjusting to life outside the womb. By the second week, they begin gaining around 150-200 grams (5-7 ounces) per week. Their weight usually doubles by four to six months. By their first birthday, they may weigh three times their birth weight.
But what if your baby isn’t gaining weight as expected? That’s when the real worry begins. Some babies gain weight more slowly, and that’s okay as long as they are feeding well, having at least six wet diapers a day, and staying active. Every baby is different—some grow in spurts, while others gain weight more gradually.
Factors That Affect Weight Gain
Several factors influence baby’s growth charts:
Feeding method: Breastfed and formula-fed babies may gain weight at different rates. Breastfed babies often gain weight more slowly at first but catch up later.
Genetics: A newborn’s average weight and growth rate can be influenced by their parents’ genetics.
Health conditions: Some medical issues, such as infections or feeding difficulties, may affect a baby’s weight gain.
Feeding intervals: Ensuring newborns get enough milk supports steady weight gain, and they need to feed every 2-3 hours.
When to Consult a Pediatrician
Feeding challenges are common. For breastfed babies, it’s hard to know exactly how much milk they are getting. Are they drinking enough? Are they latching correctly? These questions can feel overwhelming. If your baby is formula-fed, you might wonder if you should increase the amount. The best way to make sure your baby is getting enough for a healthy weight is to watch their hunger cues and diaper changes, rather than stressing over the numbers on the scale.
Another thing that worries parents is comparing their baby to others. “My friend’s baby is 12 pounds, but mine is only 9!” Every baby grows at their own pace. Instead of comparing, focus on your baby. Are they alert? Meeting milestones? If so, their weight is likely fine.
While some variation in weight gain is normal, parents should talk to a doctor if they notice:
- Baby is not gaining weight or has lost more than 10% of their birth weight.
- The baby is overly sleepy and doesn’t wake up for feeds.
- There are fewer wet diapers than usual.
- The baby is constantly fussy or seems hungry all the time.
If a baby is not growing as expected, doctors may recommend supplementing with formula. This can be tough for breastfeeding moms, but the priority is a healthy baby, not just breastfeeding alone. Some medical issues, like tongue ties, reflux, or allergies, can also make feeding difficult. If your baby struggles despite regular feeds, talk to your pediatrician.
Newborn weight gain is important, but it’s just one part of the bigger picture. If your baby is feeding well, happy, and having enough wet and dirty diapers, you are likely on the right track. Every baby is different, so trust your instincts.
Trusted Care and Support for Your Child’s Health
If you have concerns, Aloha Kids Clinic is here to help. Our team can ease your worries, offering guidance and support. We also provide a full range of vaccinations and care for respiratory issues in children, ensuring your little one stays healthy and happy.