Patient's question:
NoDoctor's answer:
Hello, the best time is 24 to 28 weeks. 4D ultrasound can detect it. Fetal facial abnormalities: such as cleft lip and palate. Nervous system: anencephaly, hydrocephalus, microcephaly, spina bifida, and meningocele. Digestive system: omphalocele, exomphalos, intestinal atresia, and Hirschsprung's disease. Urinary system: hydronephrosis, polycystic kidney disease, megacystis, and urethral obstruction. Other abnormalities: limb anomalies, conjoined twins, congenital heart disease, and teratoma.