A couple consulted you for counselling regarding conception. The couple had child born with anencephaly. What is recurrence risk for an open neural - tube in next pregnancy: (A) 10%, (B) 3 % to 5 %, (C) 25%, (D) None
Answer is B. The recurrence risk is 3 → 5 % approximately if a couple has had previously a child with either anencephaly or spina bifida.