An OB (obstetrician, usually as part of OB/GYN) is a doctor who specializes in pregnancy, childbirth, and care right after birth, while often also handling broader women’s reproductive health.

Quick Scoop: What does an OB do?

An OB’s core job is to guide someone safely through pregnancy and delivery. They also work closely with nurses, midwives, anesthesiologists, and pediatric teams in hospitals and clinics.

During pregnancy

  • Confirms pregnancy and estimates due date.
  • Orders and reviews ultrasounds, blood tests, and screening tests for you and the baby.
  • Monitors baby’s growth, heartbeat, and position in the womb at regular prenatal visits.
  • Manages common pregnancy issues like high blood pressure, gestational diabetes, or anemia.
  • Provides counseling on nutrition, exercise, mental health, and birth planning.

During labor and birth

  • Checks how labor is progressing with exams and fetal monitoring.
  • Helps with pain relief options (like epidurals, medications, or other methods—often coordinating with anesthesia specialists).
  • Delivers babies through vaginal birth and performs cesarean sections when needed for the safety of parent or baby.
  • Handles emergencies such as heavy bleeding, fetal distress, or complications during labor.

After delivery (postpartum)

  • Monitors recovery from birth or surgery (C‑section), checking bleeding, healing, and vital signs.
  • Screens for infections, blood clots, and postpartum depression.
  • Discusses breastfeeding, contraception, and future pregnancy plans.

When the OB is also an OB/GYN

Many OBs are also gynecologists (OB/GYNs), so they additionally:

  • Do routine checkups, Pap tests, and cancer screenings for the female reproductive system.
  • Diagnose and treat conditions like fibroids, endometriosis, pelvic pain, urinary incontinence, and sexually transmitted infections.
  • Perform surgeries on reproductive organs when needed (like hysterectomy or laparoscopy).

TL;DR: An OB is the pregnancy and birth specialist on your team, managing everything from the first positive test through delivery and early recovery, and often providing overall reproductive health care as well.

Information gathered from public forums or data available on the internet and portrayed here.