Iam 16.5 year old but iam look like 12 or 13 years boy ..my height is 5'4.5 does my height increase further ..

Maybe. Maybe not.: Most people reach their maximum height in their late teens. Without nutritional problems or chronic childhood illnesses, height is largely based on genetics and parental heights. Aside from eating right, exercising, sleeping well, and being happy, there's not much a person nor his doctor can do to increase height. One can ask the pediatrician about height, at a check-up or an extra office visit.