Patient's question:
Doesn't like to laugh, lies down and laughs by himself, but doesn't laugh much when held. He will never stand or crawl, and will never pick things up either. What's going on? He is much smaller than his peers. At 7 months old, he just weighs 14 pounds.Doctor's answer:
From your description, the child's condition should be cautious about the possibility of having mental developmental delay. If the child has a history of abnormal birth, such as respiratory distress, umbilical cord, three degrees of amniotic fluid turbidity, preterm birth, etc., it should be considered more seriously about the possibility of mental developmental delay. If the child rarely moves on the ground, or has already learned to use a step stool, it may lead to the inability to stand and sit. Children of this age should be able to crawl on their stomachs and meet all the standards.