Microcephaly is a rare neurological condition affecting 2-12 babies per 10,000 live births in the United States every year.1
The condition presents as having a smaller than average head size as compared to babies who fall into the same age and sex categories. Microcephaly often results in a smaller brain size.1,2
Abnormal brain development frequently accompanies microcephaly and is often present in combination with other major birth defects, although it can also be the only abnormality present.1,2
Microcephaly can be present at birth due to abnormal brain growth in utero or may be diagnosed after birth as a result of poor brain growth.
