<unk>  <unk>  disorder is an obstructive developmental anomaly in the urethra and genitourinary system of male newborns. A<unk>  is an obstructing membrane in the<unk>  male urethra as a result of abnormal in utero development. It is the most common cause of bladder outlet obstruction in male newborns. The disorder varies in degree, with mild cases presenting late due to milder symptoms. More severe cases can have renal and respiratory failure from lung underdevelopment as result of low amniotic fluid volumes, requiring intensive care and close monitoring. It occurs in about one in 8,000 babies.
Posterior urethral valve
Urethral caruncle
Hypospadias
Cloacal exstrophy
Epispadias
Mandibuloacral dysplasia
Bladder exstrophy
Urachal cyst