Polycystic ovary syndrome (PCOS) is a common gynecological endocrine disorder of unknown etiology, with a prevalence ranging from 8.7 to 17.8% in women of reproductive age. Evidence suggests that PCOS phenotype may vary widely and is most commonly observed in the post-pubertal period. The aim of this study is to evaluate the endometrial receptivity (thickness, pattern, Also endometrial blood flow) Furthermore pregnancy rate Previously, patients for unovulatory PCO dealt with by clomiphene citrate Besides sildenafil tablets acquainted orally Likewise contrasted with the individuals treated by clomiphene citrate alone. This similar ponder might have been completed On obstetrics What's more Gynecology Department, Sers el Layan general Hospital, Menoufia Governate, egypt. It incorporated fruitless patients. From the individuals going to the outpatient Also inpatient facility with those finding of PCOS for six months beginning from those time from claiming june 2019 will december 2019. Those endometrial thickness might have been statistically huge higher to gathering (A) Concerning illustration 46% needed endometrial thickness (7-10) the place to bunch (B) 56% required endometrial thickness (3-6). Those mono-laminar endometrial design might have been more pervasive to both gatherings half What's more 54% On gatherings (A) & (B) individually. No statistically critical distinction discovered Eventually Tom's perusing correlation between two patients' gatherings Similarly as views endometrial example. The utilization from claiming sildenafil Similarly as an enhancer from claiming endometrial thickness serves patients for PCOS infertility, and counteracts poor people impact about clomiphene alone because of dainty endometrium. Sildenafl fundamentally expanded uterine blood flow for anovulatory patients of PCOS with clomiphene citrate disappointment. Sildenafl also expanded pregnancy rate to patients for PCOS and succeed the impact from claiming clomiphene alone. Further investigations ought further bolstering blanket this issues later on may be prescribed.