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Decreasing weight gain
My baby boy is 3.5 month old and his weight is 7kg . From his 15 days to 1.5month age he gain 2kg weight in one month and from 1.5month to 2.5month age he gain 1.5kg weight but suddenly during 2.5month to 3.5 month he gain only 550gm weight in one month. He is a breastfeeding baby. He has a habit of passing stool immediately after breastfeeding and this habit increase from last one month. Why weight gain suddenly decrease so much ?Is this normal?
Answers (10)
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It’s completely normal for a baby’s weight gain to slow down after the initial months. In the first 2–3 months, babies tend to gain weight rapidly, but after that, the rate naturally slows. A gain of around 500–600 grams per month at this age is still within the normal range for a healthy breastfed baby. Passing stool after feeds is also common in young infants due to the gastrocolic reflex, and it doesn’t indicate any issue if the baby is otherwise active, feeding well, and passing adequate urine. No need to worry unless there are other concerns like poor feeding or lethargy.
Next Steps
Kindly monitor his weight periodically
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If you still have any doubts feel free to discuss
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Hello,
It is normal for the baby. As the age increases weight gain slows.
Next Steps
Continue exclusive Breastfeeding on demand till 6 months of age.
Focus on overall growth and activity.
Health Tips
Follow the growth chart provided during well-baby visits
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Hello
It is normal for weight gain in infants to slow down after the first 2–3 months. In the initial weeks, especially if feeding well, babies may gain rapid weight, but this rate naturally decreases as growth stabilizes.
A gain of ~550 g in a month at 2.5–3.5 months is still within acceptable limits for a healthy breastfed baby.
Passing stools frequently after feeds is also a normal reflex (gastrocolic reflex) in breastfed infants and is not a cause for concern if the baby is active, feeding well, and has no other symptoms.
Next Steps
Continue exclusive breastfeeding on demand.
Monitor weight monthly — aim for ~500–800 g/month from 3–6 months.
Ensure the baby is alert, feeding well, and achieving milestones.
Health Tips
No need for supplements or formula if the baby is exclusively breastfed and gaining adequately.
If weight gain drops below 400 g/month or if the baby shows signs of poor feeding or lethargy, consult a pediatrician.
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Dr. Prathibha Reddy
Pediatrician
12 yrs exp
Hyderabad
Weight gain is appropriate . As age increases weight gain will decrease. As per age weight gain is normal . No need to worry . Passing stools after feed normal
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Dr. Ajit Bhandarge
Pediatrician
7 yrs exp
Jalna
Hi it's normal weight no need to worry
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Dr. Bhatt Vivek Prafulchandra
Pediatrician
5 yrs exp
Rajkot
Consult with Pediatrician physically for further evaluation and treatment
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Dr. Ajith Narayanankutty
Pediatrician
14 yrs exp
Ahmedabad
Hi.
Your baby is fine. Don’t worry.
May I know the birth weight of your baby??
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Dr. Sachin Pariskar
Pediatrician
8 yrs exp
Pune
No issues
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Dr. Noureen Sadaf
Pediatrician
3 yrs exp
Kota
The weight gain is very normal instead I would say it is on the upper side of normal for a 3.5 month baby. Do not worry and continue breastfeeding.
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Dr. Vinit M Mehta
Pediatrician
8 yrs exp
Vadodara
Totally normal. Weight has rose what is ideal. Now it would be 1.5kg in next 3 months. This is the rate.
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Disclaimer : The content is not intended to be a substitute for professional medical advice, diagnosis, or treatment. Always seek the advice of your physician or other qualified health provider with any questions you may have regarding your medical condition. Never disregard professional medical advice or delay in seeking it because of something you have read on this website.