Article · Wikipedia archive · Last revised Jun 30, 2026

List of fetal abnormalities

Fetal abnormalities are conditions that affect a fetus or embryo, are able to be diagnosed prenatally, and may be fatal or cause disease after birth. They may include aneuploidies, structural abnormalities, or neoplasms.Acardiac twin Achondrogenesis Achondroplasia Adrenal hematoma Agenesis of the corpus callosum Amniotic band syndrome Anal atresia Anencephaly Angelman syndrome Aqueductal stenosis Arachnoid cyst Arthrogryposis Bilateral multicystic dysplastic kidneys Camptomelic dysplasia Cardiac rhabdomyoma Caudal regression syndrome Chorioangioma Cleft palate Club foot Coarctation of the aorta Conjoined twins Cyclopia Cystic hygroma Dandy–Walker malformation Diaphragmatic hernia Diastrophic dysplasia Double outlet right ventricle Duodenal atresia Ebstein's anomaly Ectopia cordis Encephalocele Endocardial cushion defect Esophageal atresia Exstrophy of the bladder Fetal alcohol syndrome First arch syndrome Focal femoral hypoplasia Gastrointestinal atresia Gastroschisis Holoprosencephaly Hydranencephaly Hydronephrosis Hydrops fetalis Hypoplastic left heart syndrome Infantile polycystic kidney disease Iniencephaly Intracranial teratoma Intrauterine growth retardation Klippel–Trénaunay syndrome Limb body wall complex Macrosomia Meconium cyst Meconium ileus Microcephaly Multicystic dysplastic kidney Multiple pterygium syndrome Oligohydramnios Omphalocele Osteogenesis imperfecta Pentalogy of Cantrell Polydactyly Polyhydramnios Posterior urethral valves Renal agenesis Rh incompatibility Sacrococcygeal teratoma Spina bifida Spinal dysraphism Syndactyly Tetralogy of Fallot Thanatophoric dwarfism Transposition of the great vessels Triploidy Trisomy 13 Trisomy 18 Trisomy 21 Turner syndrome Twin-to-twin transfusion syndrome Ureterocele VACTERL association Vein of Galen malformation Ventricular septal defect

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Fetal abnormalities are conditions that affect a fetus or embryo, are able to be diagnosed prenatally, and may be fatal or cause disease after birth. They may include aneuploidies, structural abnormalities, or neoplasms.

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