Polycystic ovary syndrome or PCOS is a hormone A common disease among women of reproductive age. This once diagnosed, it cannot be cured. Help to avoid its effects. The exact cause of PCOS is still unknown. But there are some factors that illustrate the possibility of PCOS. The factors that cause this syndrome are : obesity and insulin, immunity , blood pressure , depression , inflammation. Symptoms include : hirsutism, oligo-ovulation, acne, heavy bleeding, darkening of the skin. Causes and uses a model is developed to accept the symptoms and their characteristics. Machine Learning models used for supervised classification are K-Nearest Neighbor and logistic regression. The reason multiple models were built behind the scenes to identify the best one for a given dataset , the known extent of knowledge