Siddha medicine is a treatment which is followed by an Ancient Tamilians. It has no side effects and cost efficient. Polycystic ovarian syndrome is a hormonal disorder affecting many women nowadays. It is called as syndrome because it shows many symptoms. It is also named as polycystic ovary disease, stein Leventhal syndrome or hyper androgen anovulation syndrome. In this PCOS more than 12 tiny cysts present in the ovary. It may cause due to genetic problem or lifestyle factors. This review interrupts the solution to reduce the risk and ill effects of PCOS with help of siddha medicine which is the best, nil side effects, and cheapest medicinal system.