How you determinate if your child have down symdrome or its retarded? he is 2 years and 2 months old? he started to walk at 1 year and six months old. he doesn't talk yet. he always says tati daddy , he is very happy boy. when i was pregnant at my 8ths mo

Down : Down syndrome is pretty easy to detect on sight, and it's very unlikely that your baby has that condition without its having been detected. There could potentially be other issues, but it's not possible to tell whether or not there's anything wrong without a complete physicial evaluation. Babies develop at different rates, so there's no reason to be overly concerned if yours is a little behind his peers in some areas. Again, only a visit with your doctor can sort out what's within a normal range.