Welcome to healthcare magic ....
size varies with age , so in a normal baby of 3 months age you can still feel the liver while examining the abdomen.Thats completely normal.
2)If your doctor is a pediatrician
, then he might be correct when he says your baby's liver is enlarged , if not a pediatrician please get a pediatrician s consultation .
3)Get an ultrasound
scan and look for liver span , usually it will be Less than or equal to 12 cms, so if the report says that the liver is large or there is hepatomegaly
- then yes there is some problem and he needs further evaluation to see whats wrong with him.
4) You can get an ultrasound done immediately at many places, i do not know where you are from else i could have suggested.
5)If your kid is normal , feeding well and passing urine and stools regularly , no jaundice
, then no need to worry , just get a Ultrasound .