15 doctors weighed in:
Our four month old boy seems to get fussy at times and starts shaking his arms, startles easy and makes nervous, jittery like movements. Normal?
15 doctors weighed in

Dr. Robert Kwok
Pediatrics
11 doctors agree
In brief: Doctor can evaluate
Jittery or shaky movements in a startled 4-month old baby may be normal, but it is hard to tell without examining the baby and seeing the movements.
The best way to do this is to make videos of the baby's movements and show the pediatrician, who can take into consideration the progress in all the areas of baby development, before deciding whether the baby's movements are normal for his age.

In brief: Doctor can evaluate
Jittery or shaky movements in a startled 4-month old baby may be normal, but it is hard to tell without examining the baby and seeing the movements.
The best way to do this is to make videos of the baby's movements and show the pediatrician, who can take into consideration the progress in all the areas of baby development, before deciding whether the baby's movements are normal for his age.
Dr. Robert Kwok
Dr. Robert Kwok
Thank
1 comment
Dr. Charlene Sojico
Definitely video taping is the way to go to give you the best answer! Referral to neurologist if necessary.so what did they find out about your baby?thanks for sharing.
Dr. Charlene Sojico
Pediatrics
2 doctors agree
In brief: Baby tantrums
It is still normal for a 4 month old to startle easily and make jittery movements.
This will normally resolve in time , about 6 months old. If it goes beyond this age, may need to be evaluated for other causes.

In brief: Baby tantrums
It is still normal for a 4 month old to startle easily and make jittery movements.
This will normally resolve in time , about 6 months old. If it goes beyond this age, may need to be evaluated for other causes.
Dr. Charlene Sojico
Dr. Charlene Sojico
Thank
Dr. William Singer
Pediatrics - Neurology
1 doctor agrees
In brief: See pediatrician
I would consult your pediatrician.
You may find that this occurs before feeding time. Keep track of the time this happens related to other factors such as meals, nap time or whether you child is constipated.

In brief: See pediatrician
I would consult your pediatrician.
You may find that this occurs before feeding time. Keep track of the time this happens related to other factors such as meals, nap time or whether you child is constipated.
Dr. William Singer
Dr. William Singer
Thank
Get help from a real doctor now
Dr. Jonathan Jassey
Board Certified, Pediatrics
13 years in practice
1M people helped
Continue
107,000 doctors available
Read more answers from doctors