This document outlines a protocol for taking a pediatric history that includes 12 sections. The sections cover: 1) the patient's profile, 2) presenting complaints, 3) history of present illness, 4) birth history, 5) feeding history, 6) immunization history, 7) developmental history, 8) past medical history, 9) personal history, 10) drug history, 11) family history, and 12) socioeconomic history. For each section, the protocol lists specific questions and areas of inquiry to comprehensively understand the child's medical background and current issues.