My nephew is 3 years old and she hardly weighs 5 kg. She early can speak few words. I did consult so many child specialist but outcome is not that much so which investigation should I do or what kind of specialist should I consult?

Suggestions offered by doctors on Lybrate are of advisory nature i.e., for educational and informational purposes only. Content posted on, created for, or compiled by Lybrate is not intended or designed to replace your doctor's independent judgment about any symptom, condition, or the appropriateness or risks of a procedure or treatment for a given person.