Adhesions are areas of fibrous scar tissue that stick internal surfaces together. The common causes of adhesions to the fallopian tubes are infections, previous surgery, abdominal trauma, endometriosis and appendicitis. Adhesions may affect the chances of achieving a pregnancy. The ends of the fallopian tubes have finger like projections or fimbriae which move over the surface of the ovary to collect the egg as it is released.  If there are adhesions the fimbriae would not be able to perform this action.  Adhesions may be treated by surgical intervention or it may be necessary to have IVF treatment to conceive.