The infection may also be introduced through a skull fracture following a head trauma or surgical procedures. Brain abscess is usually associated with congenital heart disease in young children. It may occur at any age but is most frequent in the third decade of life.
Changes in mental status, which may include:
Poor mental focus
Slow thought processes
Hemiparesis - weakness, paralysis on one side of the body
Aphasia - poor speech, for example slurred speech
Coordination becomes poorer
Nausea and/or vomiting
Stiff neck, back or shoulders
Blurred, double or graying vision if the abscess presses on the optic nerve.