Head circumference that is more than three standard deviations below the mean for the age and sex of the infant
can be congenital or may be acquired
can be caused by abnormal development during gestation or follow intrauterine infections such as zika virus, rubella, toxoplasmosis, and cytomeglovirus
acquired microcephaly may occur due to severe malnutrition perinatal infections, or anorexia in early infancy
Nursing assessment: as child ages, head growth will fail while the face will continue to grow at a normal rate
Nursing assessment: results in a small head, large face, loose often wrinkled scalp
Nursing assessment: as the child grows older, the smallness of the skull becomes more pronounced
Nursing assessment: the degree of intellectual ability varies
Nursing assessment: convulsions may be present, and motor deficit ranges from clumsiness to spastic quadriplegia