A diaphragmatic hernia is defined as a communication between abdominal and thoracic cavity with or without abdominal contents in the thorax. The true incidence of Congenital diaphragmatic hernia is 1 in 5000 live births while right side diaphragmatic hernia (15%) is rare comparing to left side diaphragmatic hernia (85%) because liver plugs the opening. Congenital diaphragmatic hernia typically refers to Bochdalek form, other forms are rarer. Despite advances in neonatal intensive care, congenital diaphragmatic hernia is associated with high mortality and morbidity. The posterolateral right congenital DH is a rare diaphragmatic defect. Females are twice affected than that of males. The symptoms are non characteristic and patients with this disease maybe without symptoms for a long period. The main tool for diagnosis of congenital DH is radiography. Surgical correction is required.