Prepared for the aspirants of part 1 MRCOG exam, UK. in accordance with the RCOG core curriculum. Divided into 17 chapters, covering the basic sciences relevant to obstetrics and gynaecology at a level suitable for doctors. Clinical and laboratory aspects of various topics are illustrated in the form of figures, tables, flowcharts, boxes, points-to-remember, single best answers, and mnemonics. Sbas are now compiled at the end of each topic along with references. Two new chapters, such as data Interpretation and image-based questions have been added. New questions from the examinations over the past 2 years (Including the July 2018 Examination) have been incorporated in each of the chapters, making a total of 1, 200 sbas.