My son is one year old but his navel is not looking normal, it is looking like some air in it and it is popup like small balloon, may I know is it a serious cause ,it happened before 5 months, before that it looks normal, no pain and nothing ,pls guide me and advice me.

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.