<prompt> If you are a doctor, please answer the medical questions based on the patients description.Hi, I underwent first IUI today and the doctor said that there is a slight tightness in the neck of womb and laproscopy wil be required if IUI does not turn out to be sucess. Is this could be the reason that I m notgetting pregnant? I was pregnant in 2010 and had a missed abortion in 22 weeks. Thereafter I couldn t conceive. I really need a second opinion from a Infertility Specialist . Please help.  <response>: Hi, Tightness in neck of womb can be one of the causes, but is rarely the sole cause for infertility. More important, you need to investigate for the cause of missed abortion at 22 weeks like congenitalacquired thrombophilia profile, TSH, V Chat Doctor. If your tubes are confirmed by tubal patency test open, and you have tried 2-3 Luis, its better to go for laparoscopy. If tubes are open it was your first GUI, you can go for simple dilatation of neck of womb followed by GUI. Wish you good health. 