Ultrasound technology offers valuable information when used as a diagnostic tool during a pregnancy at risk for complications. Its use has expanded greatly to uncomplicated pregnancies as a result of expectant parents' desire to see their baby or to know its gender. Many women are having ultrasounds without being given factual information regarding the purposes, risks, and/or benefits of this procedure. Decisions regarding ultrasound sonography could have a significant physical or emotional impact on the pregnancy, and informed decision making can take place only when the patient is properly educated. Issues regarding ultrasound benefits, safety, controversies, and information helpful to nurse practitioners involved in sonography are addressed in this article.