Microtia and anotia Microtia and anotia are birth defects of the ear. Learn about risk factors for microtia.
Pregnancy after age 35 If you get pregnant after 35, you may need prenatal tests to check for birth defects. Learn about pregnancy after 35.
Folic acid Folic acid is vitamin B9, which can help prevent neural tube defects in your baby. Learn which supplements and foods are good sources of folic acid.