I have been trying to get pregnant for the past 2 years, I have undergone iui today my doctor tried to insert catheter but she couldn't do that. She told me like I have obstruction in my uterus. And asked me to come on 3rd day of my next periods to open the sticking block by D&C. MyHSG reports says my fallopian tubes are open. My doctor itself don't know d reason for d obstruction, she guessed that it because of infection or dye which is used for HSG. Can you tel me what is the reason. Is D&C the only option to remove this.