The purpose of predictive genetic screening is to learn whether an individual is at high risk of developing a heredity condition that may run in the family. This article shows you how to weigh the benefits and disadvantages of having such genetic testing done, and explains how the decision is dependent on many factors, e.g., age the disease might start, seriousness of the condition, whether preventative action could minimize the effects of the disease, or what kind of discrimination one could face if a debilitating disease was predicted.