What is HSG? Will it diagnose whether i have PCOS?

HSG is a Hysterosalpingogram which is an X-ray type of test to detect problems in the uterus and fallopian tubes, and it is used for fertility testing . PCOS has to do with cysts on your ovaries. Im not exactly sure but i would say you cannot diagnose PCOS with a HSG test. You really need to ask your Dr this question.