In women of childbearing age, polycystic ovarian syndrome (PCOS) is the most common endocrine and metabolic condition. Ovulatory dysfunction, clinical symptoms of hyperandrogenism, and multiple cystic ovaries are the hallmarks of PCOS. Women who have PCOS may have irregular insulin activity in addition to other difficulties such as pattern hair loss, acne, obesity, infertility, and hirsutism. An unhealthy lifestyle, hereditary causes, androgen exposures, and neuroendocrine factors are frequently the causes of PCOS. This results in an unbalanced hormonal state, hyperandrogenism, high insulin, and inflammation. Due to the overlapping metabolic and endocrine issues, PCOS patients' cancer risk has been the subject of debate for decades.This review article examines the relationship between PCOS and various types of reproductive cancers, focusing on the possible reasons for cancer in PCOS patients.