What Does OB Means in Medical? Obstetrics Obstetrics is the branch of medicine that deals with pregnancy, childbirth, and the postpartum period. Related Practice Tests โ Previous What Does NKA Means in Medical? โน Next โ What Does OT Means in Medical? โบ What Does NKA Means in Medical? What Does PT Means in Medical? What Does I&O Means in Medical? What Does GI Means in Medical? What Does Bx Means in Medical? What Does ENT Means in Medical?