The article presents a study which aims to evaluate the diagnosis of asymptomatic vasa previa through obstetric ultrasound imaging. The study conducted a survey to obstetric and fetomaternal consultants in England and Wales in March and July 2006. Results indicate that 80% of the respondents offer an elective Cesarean section when vasa previa was diagnosed antenatally. It also shows that only 20% obstetricians in England and Wales agreed on the possibility of screening policy.