<qa>  What was the effect of metformin on PCOS patients regarding its clinical and radiological parametersThe effect of metformin on PCOS patients regarding its clinical and radiological parameters was also assessed. Each patient was asked to keep a diary of her menstrual periods over the study period; to elicit if there could be an effect by metformin on the regulation of menstrual cycles secondary to improvement of ovarian function as a result of improving insulin resistance in such patients. The effect of metformin on ovarian morphology by ultrasound was also assessed at baseline, 3months and 6 months of the study period; ovarian volume and number of follicles was noted down at each visit. 