Pelvic adhesions, also called uterine synechiae, are bands of scar tissue that form in the pelvic area (ovaries, fallopian tubes, uterus, bladder, and bowel). This is quite common in Asherman's syndrome.
Existing pelvic adhesions can make it difficult to achieve a pregnancy. For example, if the fallopian tubes are joined, it is difficult for the egg and sperm to meet. In addition, synechiae can also prevent the arrival of the fertilized egg in the uterus.
All of this increases the possibility of ectopic pregnancy, in other words, that the embryonic implantation occurs outside the uterus