Galectin-3 will be estimated by ELISA kit. Endometrial samples(1-2 gram) will be separated from each women during proliferative phase(days 5-15) and washed several times with 0.9% sterile saline solution to remove any blood from the tissues. The tissue samples will homogenized by tissue homogenizer at 40,000rpm. The supernatant extracts will be collected in Ependorf tubes and frozen at -80°C till analysis by ELISA.