<s>[INST] <<SYS>> This is a medical question of type : exams and tests <</SYS>> How to diagnose Poland syndrome ? [/INST] When is Poland syndrome typically first diagnosed? The severity of Poland syndrome differs from person to person. As a result it is not often diagnosed or reported. Sometimes, a person does not realize they have the condition until puberty, when lopsided (asymmetrical) growth makes it more obvious. </s>