ABOG Certifying Examination Format: Oral Sections and Case Lists

If you're trying to picture the ABOG Certifying Examination format, think three one-hour oral sections rather than a multi-station circuit: Obstetrics, Gynecology, and Office Practice. In each hour, about 30 minutes comes from your own submitted case list and about 30 minutes comes from ABOG structured or simulated cases, so you need to prepare both your real patients and the blueprint topics.

That structure matters because candidates often overlearn their own cases and underprepare for the structured half of the exam. ABOG's published scoring focus is not simple recall; it is your ability to diagnose, choose treatment, anticipate complications, and plan follow-up when the facts change.

ABOG Certifying Examination format at a glance

The current specialty Certifying Examination is the final step in ABOG specialty certification. ABOG describes it as an oral structured interview held at the ABOG National Center for Certification and Continuing Education, and the current 2026 specialty bulletin applies to exams scheduled in October, November, and December 2026.

On the day, after registration and orientation, you stay in your assigned room for the full exam. The examination is three hours long, conducted in English, and run by six examiners in total: two in Obstetrics, two in Gynecology, and two in Office Practice. If you identify a genuine conflict with an examiner, ABOG says it will investigate and provide an alternate if needed.

The three oral sections

The three oral sections are:

Obstetrics
Gynecology
Office Practice

Each hour is split into two roughly 30-minute halves. One half uses cases from your submitted case list, and the other half uses structured or simulated cases written by ABOG.

Practical takeaway: don't prepare as if this exam is only about defending your own management. Half of every hour is still examiner-written territory.

How the content is weighted

ABOG currently weights the exam about equally across the three main areas: 33% Obstetrics, 33% Gynecology, and 33% Office Practice. ABOG also states that candidates may be assessed in Cross Content across these areas.

Obstetrics subdomains: Preconception/Prenatal/Antenatal Care 4%, Evaluation/Diagnosis of Antenatal Conditions 8%, Intrapartum Care, Complications, and Obstetrical Procedures 18%, and Postpartum Care 3%.
Gynecology subdomains: Preoperative Evaluation 4%, Perioperative Care 3%, Surgical Complications 4%, Postoperative Care 8%, Gynecologic Emergencies 9%, and Surgical Procedures 5%.
Office Practice subdomains: Well-Woman Preventive Care 10%, Office Management – Medical Problems 4%, Office Management – Gynecology 15%, and Office Procedures 4%.

Cross Content is not filler. The current blueprint includes applied basic science and evidence-based medicine, culturally aware and equitable care, communication in unexpected or crisis situations, handoffs, quality improvement, multidisciplinary working, and professionalism.

Practical takeaway: if you build revision only around disease lists, you'll miss the communication and systems questions that can surface anywhere.

How the case lists work

Your case list is not an administrative extra. It is built into the exam itself. ABOG says candidates must submit the case list electronically, and selected cases are displayed on the screen for both candidate and examiner during the case-list half of each hour; you cannot bring your own copy into the room.

For the 2026 specialty exam cycle, the bulletin says your case list must include all patients primarily cared for by you between July 1, 2025 and June 30, 2026 at all hospitals and surgical centers where you hold admitting and or surgical privileges. The live ABOG case-list page groups entries under Office Practice, Gynecology, and Obstetrics.

ABOG expects breadth, depth, and completeness. Patients seen only as a consultation for another physician should not be listed. In group practice, you list patients you personally managed; if you were backup for a midwifery group, you do not list the delivery unless you performed it; if you are faculty, you include patients for whom you had responsibility even if a resident performed the delivery. Submitted lists are subject to audit, and ABOG can withhold scores until an audit is complete.

If you cannot meet the required obstetric or gynecologic experience from your current practice, ABOG directs candidates to additional case sources. Candidates who limit practice to outpatient care only are not eligible for OB-GYN certification.

What examiners do with your cases

ABOG's own example is worth using in your revision. You might discuss a real adnexal mass from your list, then the examiner changes one variable, such as age, and asks whether management would differ. That means your notes should not stop at what you did. They should cover what you would do if the patient were younger, older, unstable, pregnant, strongly fertility-seeking, or medically complex.

A simple way to rehearse each case is to answer five questions out loud:

What is the working diagnosis, and what must I rule out first?
What information do I still need?
What is my management plan now?
What complication am I trying to prevent or recognise early?
What follow-up, counseling, and safety-netting does this patient need?

That is close to the way ABOG describes the abilities being tested.

What examiners are listening for

ABOG says the questions are designed to test whether you can develop a diagnosis, choose and apply treatment in elective and emergency settings, prevent and manage complications, and plan follow-up and continuing care. That is the spine of a good answer.

A reliable structure is:

Opening line: headline diagnosis, acuity, and immediate priorities.
Assessment: key history, examination, investigations, and risk factors.
Management: first-line plan, alternatives, and why.
Complications and contingencies: what could go wrong, how you would prevent it, and what would make you escalate.
Follow-up and counseling: disposition, review, fertility plans, contraception, pathology, MDT input, or return precautions as relevant.

Worked example: if the examiner shows a 67-year-old with postmenopausal bleeding from your office practice or gynecology list, a strong start is to frame cancer exclusion first, state the immediate work-up, give the management pathway based on findings, and then say what changes if she is anticoagulated, haemodynamically unstable, or has major medical comorbidity.

That sounds like a consultant answer. Short, prioritised, and adaptable.

Key dates and timing for the 2026 cycle

The current 2026 specialty bulletin sets out the main checkpoints clearly: applications open March 1, 2026; the standard deadline is April 14, 2026; late applications run through April 30, 2026; candidate approval and week assignment are due by June 30, 2026; the case-collection period ends June 30, 2026; case lists are due July 31, 2026; late case-list submission runs through August 31, 2026; and the exams are scheduled across October, November, and December 2026.

Once approved, you receive your exam week assignment and then a second email with the exact day, time, and place to report, no later than four weeks before your scheduled week. Results are reported online no later than six weeks after the Friday of your exam week.

Practical takeaway: build your mock-viva calendar backwards from July 31, not from the first exam week.

Common mistakes

Treating the case list as a memory test instead of a decision-making test.
Neglecting Office Practice because inpatient and surgical cases feel more vivid.
Giving a long chronology before stating the diagnosis and immediate priorities.
Failing to say how management changes with age, fertility goals, pregnancy status, instability, or comorbidity.
Describing what happened without showing why you chose that plan.
Leaving de-identification, completeness checks, and audit readiness until the deadline week.
Practising only solo and never under interruption.

A realistic practice workflow

Start with the real exam shape. Run three one-hour mock blocks over a fortnight: one Obstetrics, one Gynecology, and one Office Practice. In each block, spend 30 minutes on your own cases and 30 minutes on structured stems or partner-generated variants. That rehearsal pattern mirrors the published format far better than doing random short questions.

For case-list practice, take 10 real cases and write only four prompts beside each: diagnosis, alternatives considered, complication plan, and follow-up. Then have a colleague change one variable in every case. Age, gestation, haemodynamics, desire for fertility, anticoagulation, obesity, prior surgery, limited resources. That is where the viva usually becomes interesting.

For structured-case practice, answer in under 90 seconds before the follow-up questions start. Your first sentence should orient the examiner. If you meander for a minute, you lose the chance to show judgment.

After every mock, debrief with three headings only: what I missed, what I said too late, and what I will say earlier next time. Keep the loop small enough that you'll actually use it during a busy clinical rota.

Summary

The current ABOG Certifying Examination format is a three-hour oral exam split evenly into Obstetrics, Gynecology, and Office Practice.
Each hour is divided into about 30 minutes on your submitted case list and 30 minutes on ABOG structured or simulated cases.
Your case list must be complete, de-identified, electronically submitted, and broad enough to show real clinical experience; it can be audited.
The official blueprint also tests Cross Content such as evidence-based medicine, communication, equitable care, handoffs, and professionalism.
Prepare like the exam is run: timed speaking, case variation, and focused debrief.

ABOG Certifying Examination Format: Oral Sections and Case Lists

ABOG Certifying Examination format at a glance

The three oral sections

How the content is weighted

How the case lists work

What examiners do with your cases

What examiners are listening for

Key dates and timing for the 2026 cycle

Common mistakes

A realistic practice workflow

Summary

References

Practice Obstetrics & Gynecology with a live AI examiner

ABOG Certifying Examination format at a glance

The three oral sections

How the content is weighted

How the case lists work

What examiners do with your cases

What examiners are listening for

Key dates and timing for the 2026 cycle

Common mistakes

A realistic practice workflow

Summary

References

Related guides

Practice Obstetrics & Gynecology with a live AI examiner