Abstract: PCOS is a heterogeneous and complicated disease. Recently，it has been demonstrated that chronic inflammation participates in the pathphysiological progress of PCOS， which is closely related with the initiation and progression of long-term complications of PCOS. The elevated levels of main chronic inflammatory cytokines，including C-reactive protein （CRP）， Interleukins（IL），Plasminogen Activator Inhibitor-1（PAI-1），Monocyte Chemotactic Factor-1（MCF-1） and Tumor Necrosis Factor（TNF），are associated with insulin resistance and cardiovascular diseases in women with PCOS.

Key words: Polycystic ovarian syndrome, Inflammation, Insulin resistance, Cardiovascular diseases, C-reactive protein