This document discusses headaches in children. It classifies headaches as either primary or secondary. The most common primary headaches in children are migraine, tension headache, and cluster headache. Migraines affect 3-23% of children and symptoms include throbbing pain, sensitivity to light/sound, and nausea. Tension headaches are caused by emotional or physical stress and eye strain. The document provides guidelines for evaluating and managing common childhood headaches.