Question
Mom asks: “Doctor, hello! My baby is now five months old. When I hold her to change her diaper, her legs make a popping sound when she kicks. I don’t know what’s going on. Also, is it okay for such a young baby to have an X-ray?”
Answer
Doctor responds: “This is a normal occurrence. The development of a baby’s movements follows a certain pattern, from top to bottom, including lifting the head, rolling over, sitting, and standing, all of which are part of growth. It is currently not recommended to have X-rays done on five-month-old babies unless there are special circumstances. Generally speaking, this is not necessary.” translationKey,department,title,ask,answer pediatric-76493,Orthopedics,What to Do If a Five-Month-Old Baby’s Leg Makes a Sound?,Doctor, hello! My baby has already been five months old. When I hold her to change her diaper, her legs make a popping sound when she kicks forward. I don’t know what’s going on. Also, is it okay for such a young baby to have an X-ray?,This is normal. The development of a child’s movements has certain patterns, from top to bottom: at 2 months, they can lift their head while lying on their stomach; at 3 months, they can roll from supine to lateral; at 4 months, they can sit with support; at 5 months, they can stand with support under the armpits; at 6 months, they can roll over; at 7 months, they can crawl; at 8 months, they can sit independently; at 9 months, they can stand with support; from 10 to 11 months, they can stand by themselves; and after 12 months, they can walk.