Dear Dr. I have noticed minor stiff bone puffed at my baby's spinal cord left downward near hip for which we did spine USG, report attached herewith for your reference kindly someone  review and guide. Also I have another concern about low weight gain of my baby who will turned to 6month on 10th June. His current weight is 5.30kg and his birth weight was 3.06 it should be more than double if am not wrong. He sleeps well in the night but day time he hardly sleeps an hour each 4-5 times after nursing. He drink 1ltr formula milk per day plus two to three time breastfed. Also from last 15-20 days I introduced semi solids like mung dal khichadi, banana or apple or mango pulp still weight gain is not satisfactory.  Please suggest what went wrong. Thanks in advance!