You've passed Part A. Now comes the part that catches strong written candidates off guard. This complete guide covers the MRCS Part B format, what each station tests, how it’s marked, when and where to sit it, and the techniques that can make the difference between a pass and a near-miss.
We’ve built this guide because Part B rewards something Part A never tested: the ability to demonstrate your knowledge fluidly, out loud and under direct observation. Plenty of trainees who sailed through the written paper underestimate that shift, and with only four attempts, there’s far less room to learn the format the hard way.
Everything here is geared towards effective MRCS Part B revision. From practice questions and preparation timelines to the marking scheme and pass mark, we’ll cover what you need to know about how to pass MRCS Part B. Where the rules vary by college, specialty or test centre, we’ll make that clear and point you to the official source rather than suggesting there’s one universal answer.
MRCS Part B is the second and final part of the intercollegiate MRCS examination. It assesses whether you can apply the clinical knowledge, practical skills and professional behaviours expected of a core surgical trainee.
While Part A is a computer-based written exam made up of multiple-choice questions, Part B is a practical Objective Structured Clinical Examination (OSCE). Instead of selecting answers on a screen, you’ll need to demonstrate your clinical and communication skills in real time.
Once you have passed both parts, you can apply for membership of one of the four Royal Colleges of Surgeons.
Haven’t sat Part A yet? Start with our Complete MRCS Part A Guide.
Before applying for MRCS Part B, you must have passed the Part A written exam. You’ll also need a primary medical qualification accepted by the UK General Medical Council for full or provisional registration, or by the Medical Council in Ireland.
If you’re applying internationally and are not registered with either medical council, you may need to provide evidence of your medical qualification. The exact documents and verification process can vary, so check the requirements of your chosen college before applying.
You can confirm the latest eligibility requirements on the intercollegiate MRCS website.The official MRCS website advises candidates to consult the current regulations and guidance before sitting the exam, so avoiding an absolute document requirement here will help keep the page accurate if the process changes.
Passing MRCS Part B alongside Part A gives you the full MRCS qualification required for entry to many higher surgical training programmes. However, the deadline for completing it—and whether it is required at all—depends on the specialty and your route into training.
The table below summarises the requirements published for 2026 recruitment:
| Surgical Specialty | Combined MRCS Requirement | ST3 Application Notes |
|---|---|---|
| Emergency Medicine ST3 | Route-dependent | Full MRCS is required by the offer date for applicants entering through Core Surgical Training or an equivalent route. It is not a universal requirement for applicants progressing through ACCS Emergency Medicine. |
| General Surgery ST3 | Full MRCS required | Must be completed by the date initial offers are released. Applicants must also demonstrate the required core surgical competences. |
| Oral and Maxillofacial Surgery ST3 | Full MRCS required | Must be completed by the date initial offers are released. Applicants also need both medical and dental qualifications and the required GMC and GDC registration. |
| Otolaryngology (ENT) ST3 | Full MRCS or MRCS (ENT) required | Either qualification must be completed by the date initial offers are released. |
| Paediatric Surgery ST3 | Full MRCS required | Must be completed by the date initial offers are released, alongside the relevant core and paediatric surgical competences. |
| Plastic Surgery ST3 | Full MRCS required | Must be completed by the date initial offers are released. MRCS establishes eligibility, but applicants must also meet the specialty’s wider competence and selection criteria. |
| Trauma and Orthopaedic Surgery ST3 | Full MRCS required | Must be completed by the date initial offers are released. Applicants also need evidence of core surgical and trauma-related competences. |
| Thoracic Surgery ST4 | Full MRCS required | Must be completed by the application date. This is an ST4 entry route requiring previous ST3-level cardiothoracic experience and competences. The 2026 round was announced as the final year of recruitment to these posts. |
| Urology ST3 | Full MRCS required | Must be completed by the date initial offers are released, alongside evidence of core surgical competences. |
| Vascular Surgery ST3 | Full MRCS required | Must be completed by the date initial offers are released, alongside evidence of core surgical competences. |
For most of these specialties, passing Part A alone is not enough: you must also pass Part B to complete the full MRCS qualification. Recruitment criteria and deadlines can change between rounds, so always check the latest person specification before planning your exam dates.
| Examined stations | 17 |
| Minutes per station | 9 |
| Total duration | ~3.5 hours |
The stations are divided into two broad categories: Knowledge and Skills.
Eight stations assess your surgical knowledge, while the remaining nine assess your clinical, practical and communication skills.
Every station is overseen by official examiners. Some stations use two independent examiners, with each assessing a different aspect of your performance. This ensures that your clinical knowledge and the way you apply or communicate it can be evaluated separately where required.
The Knowledge section of MRCS Part B contains eight stations covering surgical anatomy, pathology, applied surgical science and critical care.
| Knowledge Area | Number of Stations |
|---|---|
| Surgical Anatomy | 3 |
| Surgical Pathology | 2 |
| Applied Surgical Science and Critical Care | 3 |
| Total | 8 |
The three applied surgical science and critical care stations are typically divided into:
These stations test more than your ability to recall isolated facts. You’ll need to interpret the information presented, explain its clinical significance and show how it would inform your next steps.
Anatomy deserves particular attention during your MRCS Part B revision. It features heavily in both parts of the qualification, so passing Part A is not the point to ease off. Keep revisiting anatomy throughout your preparation and practise explaining structures and relationships aloud rather than relying solely on written recall.
The Skills section contains nine stations: four assessing communication and five assessing clinical and procedural skills.
| Skills Area | Number of Stations |
|---|---|
| Communication Skills | 4 |
| Clinical and Procedural Skills | 5 |
| Total | 9 |
The four communication stations are divided into:
Communication stations carry a significant proportion of the available marks, yet they are often overlooked during MRCS Part B revision. Knowing what you want to say is only part of the task. You also need to structure the conversation, gather or communicate the relevant information and adapt your language to the person in front of you.
This is difficult to develop through reading alone. Practise the stations aloud and ask colleagues to challenge you with questions, interruptions and realistic responses. It is much better to discover that an explanation feels unclear during practice than in front of an examiner.
The remaining five stations include:
These stations assess whether you can perform a focused, systematic examination or procedure while explaining what you are doing clearly. Examiners will also be looking for safe technique, appropriate clinical judgement and awareness of what should happen next.
Candidates sometimes concentrate almost entirely on factual knowledge because it feels easier to revise alone. However, the Skills section accounts for more than half of the assessed stations. Communication, examination and procedural practice should therefore be built into your preparation from the beginning rather than left until the final few weeks.
MRCS Part B is designed around four domains drawn from the GMC’s Good Medical Practice:
These domains run through the entire exam rather than appearing as four separate stations. In any scenario, you may be assessed on several of them at once: whether your clinical knowledge is sound, your approach is safe, your communication is appropriate and your conduct inspires trust.
This is why Part B cannot be approached as a test of isolated textbook facts. Examiners want to see whether you can apply your knowledge in the way expected of a safe and professional surgical trainee. A clinically correct answer may still fall short if it overlooks patient safety, ignores your professional limits or is communicated poorly.
Unlike Part A, which follows a shared schedule, MRCS Part B is held across different test centres and exam windows throughout the year. Dates, application deadlines and fees depend on the college and location you choose, so there is no single timetable covering every candidate.
The table below shows two UK sittings offered through the Royal College of Surgeons of England in May 2026:
| Test Centre Location | Active Exam Window | Application Deadline | Sitting Fee |
|---|---|---|---|
| Sheffield hub | 8–12 May 2026 | 19 March 2026 | £1,177 |
| London hub | 14–24 May 2026 | 19 March 2026 | £1,177 |
These dates are provided as a 2026 reference and have now passed. Future fees may also differ: some colleges currently list Part B at £1,212, while charges for international centres can vary further. Always check the relevant college portal before making travel arrangements or setting your revision timetable.
Part B is also held at selected international centres, but availability is more limited and popular sittings can reach capacity before the published closing date. If you plan to sit the exam overseas, check the college portals regularly and apply as soon as your preferred window opens.
You can find current dates, fees and application details through each of the four colleges:
Whichever centre you choose, Part B is a significant financial commitment once the exam fee, travel and accommodation are considered. Building a realistic MRCS Part B revision plan before booking can help you arrive prepared and make the most of your attempt.
Each assessed station is worth up to 20 marks. Your performance is considered in two ways:
The numerical mark records how well you met the individual criteria, while the global judgement reflects the examiner’s overall view of your performance in the station.
There is no fixed MRCS Part B pass mark. Instead, it is calculated after the exam using a process called borderline regression.
This method compares candidates’ numerical marks with the global judgements awarded by examiners to calculate a cut score for each station. These station-level cut scores are then combined to set separate overall pass marks for the Knowledge and Skills sections of each exam circuit.
You can attempt MRCS Part B up to four times. If you reach this limit, you may apply for one additional attempt after completing verified educational experience, supported by confirmation from your educational supervisor.
Passing Part A comfortably does not guarantee the same result in Part B. The OSCE tests whether you can demonstrate your knowledge through clinical examinations, procedures and spoken communication, all while working under observation and within strict time limits.
With fewer attempts available, Part B is not an exam to approach as an extension of your written revision. Give yourself enough time to understand the format, practise stations aloud and receive honest feedback before booking a sitting.
The MRCS Part B pass rate varies between sittings, although it has historically been higher than the pass rate for Part A, with the highest recorded historical pass rate reaching 75 percent during the autumn 2020 sitting.
A higher pass rate does not necessarily make Part B the easier exam. By this stage, the candidate pool has already passed Part A, and the OSCE assesses a different set of abilities. You must demonstrate your knowledge aloud, perform under observation and manage each station within a strict time limit.
There is also less room for error. Part B allows a maximum of four attempts, compared with six for Part A, making focused preparation particularly important.
Prior clinical knowledge provides a strong foundation, but it is not enough on its own. Candidates are more likely to perform well when their MRCS Part B revision includes timed station practice, regular communication and procedural rehearsal, and honest feedback from colleagues. The aim is not simply to know the correct answer, but to deliver it safely, clearly and confidently under exam conditions.
For anatomy, useful references include:
For physiology and pathology, candidates may find the following helpful:
Books such as SBA MCQs for the MRCS Part A and MRCS Part A: 500 SBAs and EMQs can help keep your anatomy, physiology and pathology knowledge fresh. However, dedicated MRCS Part B questions and OSCE scenarios should form the main part of your preparation.
Many of these books are also available as eBooks through publishers, hospital libraries and institutional subscriptions, so check your existing access before buying them.