The diagnosis of PCOS is based on Hyperandrogenism and chronic anovulation in the absence of specific pituitary or adrenal disease , and have disrupted ovulatory function with chronic oligomenorrhea (cycle length > 35 day) or amenorrhea (cycle length > 12 week) and typical appearance of polycystic ovaries by ultrasound according to the criteria of the Rotterdam consensus meeting 2003 for diagnosis of PCOS. The different diagnostic tests needed to adequately assess for the possibility of PCOS e.g. Pregnancy test, TSH level (for Hyperthyroidism), Prolactin test (for Hyperprolactinemia), Total testosterone (for ovarian tumor) and some tests forevaluating the insulin resistance syndrome in women: Waist circumference (>88 cm), Triglycerides (>150 mg/dL), HDL Cholesterol (<50 mg/dL), Blood pressure (>130/85) and Fasting glucose (>110 mg/dL). Fasting glucose- to- insulin ratio and 2 hour oral glucose tolerance test (2h- OGTT 140 - 199 mg/dL) may be better predictor of insulin resistance .