#asktheexperts hello doctor, my son is 15 months old but his weight is just 8 kgs, his birth weight was 2.8 kgs. His height is 75 cm. He is active but not gaining weight. What should I do? Please help!!

A. hi dear Typically, a baby's weight doubles within their first 4 to 6 months of life and triples in their first year. For instance, a baby born weighing six pounds would typically weigh about 12 pounds by the time they were 6 months old and about 18 pounds by the time they turned 1. Slow weight gain is not always a concern.