Birth defects are a common problem in the world that affects thousands of infants born every year. They are abnormalities in structure, function or the general body metabolism that occur during birth. These abnormalities eventually lead to mental and physical disabilities which can turn out to be fatal. Despite the improvement in medical technology, there are more than 150,000 babies who are born with birth defects in the United States every year (Pober, 2007). Research has shown that 3 in every 100 babies in the United States are bon with some kind of birth defects. Although the real cause of birth defects remains unknown, scientific evidence shows that birth defects may be caused by genetic, environment or due to other unknown factors. Although most parents assume that all birth defects have severe and fatal effects, research has shown that majority of birth defects are treatable and manageable sometimes before the baby is born. However, it is important to understand the risk factors that can lead to development of birth defects in order to prevent their occurrences.