This document provides guidance on taking an obstetric case history. It begins by stating the importance of case taking in reaching an accurate diagnosis. An obstetric diagnosis includes 9 key items: gravidity, parity, gestational age, fetal lie, presentation, position, engagement, current pregnancy complications, and previous medical issues. Definitions of these terms are then provided, along with examples of how to document a case history, including personal history, complaints, menstrual history, obstetric history, and physical examination. The summary concludes by emphasizing the importance of a complete case history and urine analysis in making an accurate obstetric diagnosis.