A neural tube defect will occur in human embryos if there is an interference with the closure of the neural tube that occurs around the 28th day after fertilization. The incidence of neural tube defects is 2.6 in 1,000 worldwide. Pregnant women taking medication for epilepsy have a higher chance of having a child with a neural tube defect. Research has shown that women with folic acid deficiencies also have...
The reason your doctor wants you to have the amnio is because your risk factor came back greater then it should be for your age. They estimate the odds...