Question
A boy, weighing four jin and seven liang (about 2.35 kg) at birth and 47 cm tall, experienced hypoglycemia upon discharge but has normal thyroid function. At six months old, the brain CT scan results were normal, and the chromosome test showed 46/Y, 16h plus sign, indicating slow development. Now seven and a half months old, he has been frequently sticking out his tongue since one month old, his hair growth is slow, and he has a webbed thumb on his right hand. How is his height development as a full-term small baby?
Answer
Based on the description, the boy has chromosomal defects, which are expected to cause differences in his intellectual development compared to normal children. Continuing with rehabilitation training can help bring the child’s development as close to normal levels as possible. It is too early to judge whether his height is too short at this point; over 85% of full-term infants can catch up with normal height development between six months and one year. In most cases, it is not possible to determine which children will not catch up with normal development, and most often, no intervention can be performed.