What does the medical abbreviation obg mean?

The medical abbreviation "obg" stands for "obstetrics and gynecology". Obstetrics is the field of medicine that focuses on pregnancy, childbirth, and the postpartum period, while gynecology is the field of medicine that focuses on the health of the female reproductive system. An obstetrician-gynecologist (OB-GYN) is a physician who specializes in both obstetrics and gynecology.