Like many Ultrasound modalities, OB/GYN ultrasound has come a long way since the first mom and dad were able to view their baby prior to its delivery. OB ultrasound can still consist of a small black and white unit with a curved linear and endovaginal transducer but many physicians now offer a wide range of scanning to their patients. Most popular are the new 4D OB ultrasound units that latterly allow the parents to see family features in the unborn child. Color Doppler can help a physician evaluate the umbilical cord and even look at organs and blood flow within the body of the fetus. Ultrasound can help guide a needle for an amniocentesis procedure and is extremely effective in evaluating the heart of an unborn child with the proficiency of an adult echo unit. The things that ultrasound can see in an unborn baby today is remarkable and the miracle of pediatric surgery is largely due to the ability of a sonographers and physicians who find problems in a bay that can be staged and repaired within hours of the babies’ birth. OB ultrasound is one of the great miracles of our time.