Questions answered

ok moms I have finally got some answers. I went to the hospital the other day and I got an ultrasound and the doctor told me that I was not pregnant but I did have a lot of thick build up on my uterus and it is causing me to have irregular periods. He did tell me that I might need to have a dnc. I was wondering if any of you had this problem and if you did what was done to resolve this issue. I really don't want to have a dnc because I have heard it can cause a lot of scarring and I don't want that.