Thank you for your query on Healthcare Magic.
As per the CDC growth charts your child weight is ok and it is within normal range.
Coming to height, your child height is less that 3 rd percentile means his height is low.
The causes of his low height should be evaluated.
The common causes of short stature are familia, constitutional, and pathological short statures like growth hormone deficiency
, and others.
Child needs physical assessment.
Child needs evaluation with investigations like thyroid profile, growth hormone estimation as these conditions are treatable if they found abnormal.
If the child have any growth hormone deficiency, growth hormone has to be started.
If your child is having hypothyroidism, this treatment is sufficient and usually there are no side effects with his present medication.
Therefore I advise you to monitor his height regularly and do further evaluation if required depending on the advise of your Pediatrician
Hope I have answered your query.
As you are from Hyderabad, you can consult me for further evaluation if it is possible.
Dr E Venkata Ramana,