It is occasionally used to indicate small size, but the accurate use is only in relation to one particular race of individuals. This individuals can be treated with growth hormone if caught in time. If you are a male, yes, until you are about 25-26 years old. Growth hormone might be helpful, but should be monitored very closely. It depends on her age and ethnic background.
Adults usually stop growing due to fusion of their growth plates to the associated bones.
This usually occurs around menarche for girls and about 25 for boys. Growth after this point is very rare, although it could demonstrate excess growth hormone, which is a medical condition that should be investigated. Human growth hormone will produce this effect. It is expensive, but has few, if any side effects since it is manufactured genetically. Prior to genetic production, there was a risk of viral transmission of several diseases.