What are the causes of birth defects?
Unfortunately it is not known what causes most birth defects. Sometimes birth defects just happen and no matter how much both parents prepare and prevent, the child would have been born with a birth defect either way. Some people call these types of birth defects “the moods of mother nature” and there is no way to anticipate them. Sometimes birth defects are caused by irresponsible behavior during pregnancy, such as smoking, illegal street drugs or prescription drugs.