Miscarriages can be very heartbreaking and traumatic for the couple and their families. Often when the couple finds out that they are going to have a baby, they become very cautious about the well-being of the mother-to-be. But sometimes, even after all the necessary precautions, miscarriages can occur, leaving the couple devastated. It is very important for the couples expecting a baby to know about the various factors that can cause a miscarriage so, that they can avoid them.