(See also Overview of Brain and Spinal Cord Birth Defects.)
Macrocephaly is the technical term for a large head.
Infants with macrocephaly have a head circumference that is considerably larger than others of the same age. Macrocephaly can be classified as.
Many people with large heads or large skulls are healthy.
Abnormal macrocephaly may be due to an enlarged brain (megalencephaly), water on the brain (hydrocephalus), overgrowth of the bones of the skull (cranial hyperostosis), or other conditions. These conditions may be the result of genetic disorders or disorders the child acquired before or after birth.