Zika virus and pregnancy Zika infection during pregnancy can cause a birth defect called microcephaly and other brain problems. Learn how to protect yourself from Zika.
Achondroplasia Achondroplasia is a birth defect that prevents a baby's cartilege from turning into bone as it should. Learn how achondroplasia is treated.
Amniotic fluid Amniotic fluid is the fluid surrounding your baby in your uterus. Learn how amniotic fluid keeps your baby healthy.