What are the symptoms of anencephaly?

None. The mother usually has no symptoms when she is carrying an anencephalic infant, however this is a lethal fetal anomaly. Its recurrence in future pregnancies can be prevented with daily use of Folic Acid at 4-5 mg.
Shape and size head. Children with anencephaly have a distinctive head shape and small head size with sloping forehead. Speak to your pediatrician for confirmation.