Surgery (MRCS Part B OSCE)
Walk into your MRCS B OSCE having already done it — dozens of times
Practise MRCS B stations out loud against a simulated patient who responds realistically, any time of day. Get examiner-style feedback on any station you finish, in seconds.
What is the MRCS B OSCE, and how do you practise for it?
MRCS Part B is the Intercollegiate surgical OSCE taken after Part A, set at the level of a trainee early in the second year of core surgical training: 17 examined stations of 9 minutes, each with 1 minute to read the instructions first, divided into Applied Knowledge (8 stations — anatomy, surgical pathology, applied surgical science and critical care) and Applied Skills (9 stations — history taking, giving information, and clinical and procedural skills), which are passed separately at one sitting. MedMock lets you rehearse its spoken stations — the two knowledge vivas, history taking and the giving-information stations — out loud against a realistic AI examiner or patient, with examiner-style feedback on any station you finish.
Last updated 29 October 2026
MRCS B OSCE practice, on demand
The Intercollegiate MRCS Part B OSCE, set at the level of a trainee early in the second year of core surgical training and required for entry to ST3. The real exam runs 20 stations of 10 minutes — 17 examined, 2 preparation and 1 rest — and you get 1 minute to read the instructions at each station. The 17 examined stations are: 8 Applied Knowledge stations (anatomy, surgical pathology, applied surgical science and critical care) and 9 Applied Skills stations (history taking, giving information, and clinical and procedural skills). Each station is marked out of 20 and you must pass both Knowledge and Skills. MedMock covers the spoken stations: the anatomy and pathology viva, the applied science and critical care viva, history taking, and giving information to a patient, a relative or another health professional. The hands-on clinical and procedural skills stations are not simulated.
MedMock gives you a simulated patient who responds realistically, available 24/7. Pick a station, have a spoken conversation, and ask for examiner-style feedback when you finish, scored against what genuinely matters in the MRCS B.
How it works
Choose a station
Pick from the MRCS B stations — all 6 that MedMock runs, or let MedMock surprise you the way exam day will.
Have the conversation
Speak naturally, out loud. The AI patient or examiner responds in real time — with follow-up questions, emotions, cues and unexpected turns, just like the real stations.
Get instant feedback
The moment you finish, you get specific, examiner-style feedback and a score — what you did well, what cost you marks, and precisely what to fix before the next attempt.
Practise every station
The real MRCS Part B OSCE has 17 examined stations: 8 Applied Knowledge (anatomy, surgical pathology, applied surgical science and critical care) and 9 Applied Skills (history taking, giving information, and clinical and procedural skills). MedMock covers the spoken stations — the anatomy and surgical pathology viva, the applied surgical science and critical care viva, history taking, and giving information to a patient, a relative or another health professional. The five clinical and procedural skills stations are not simulated, and neither are the prosections, bones, surface anatomy and images a real anatomy bay puts in front of you.
Anatomy & Surgical Pathology Viva
Examiner-led viva on the surgical anatomy of a named region, or on surgical pathology. 9 minutes, with 1 minute to read the instructions. In the real exam the card outside normally carries a short clinical vignette introducing the region, and the examiner questions you over prosections, bones, live surface anatomy, images, specimens or pathology reports; MedMock's card names the region and the viva is spoken only.
Applied Surgical Science & Critical Care Viva
Examiner-led viva on the applied science and critical care of a surgical patient, which may include interpreting results you are shown. 9 minutes, with 1 minute to read the instructions.
History Taking (Surgical Presentation)
Take a focused history from a patient. After up to 6 minutes the examiner stops you, asks you to summarise your findings and asks you some questions. 9 minutes, with 1 minute to read the instructions.
Information Giving & Consent
Give information to a patient about a diagnosis or an operation, including consent. 9 minutes, with 1 minute to read the instructions. This is one of MedMock's two practice versions of the real exam's single station for giving information to a patient or relative; the other is Giving Information to a Patient or Relative. In the real exam that station follows a 9-minute preparation station where you read a clinical notes folder and can make notes to take in; MedMock has no preparation station, so the case comes to you on the door card with 1 minute's reading.
Giving Information to a Patient or Relative
Give difficult information — a diagnosis, a complication or an unexpected outcome — to a patient or a relative. 9 minutes, with 1 minute to read the instructions. This is one of MedMock's two practice versions of the real exam's single station for giving information to a patient or relative; the other is Information Giving & Consent. In the real exam that station follows a 9-minute preparation station where you read a clinical notes folder and can make notes to take in; MedMock has no preparation station, so the case comes to you on the door card with 1 minute's reading.
Giving Information to a Health Professional
Refer or hand over a surgical patient to a colleague, in person or by telephone. 9 minutes, with 1 minute to read the instructions. This is the real exam's station for giving information to another health professional. In the real exam this station follows a 9-minute preparation station where you read a clinical notes folder and can make notes to take in; MedMock has no preparation station, so the case comes to you on the door card with 1 minute's reading.
Sample MRCS B questions
Two questions from the topics that come up most in MedMock's MRCS B bank.
“A patient with a high output ileostomy (3 litres/day) develops lethargy and dizziness. Their U&Es show Na 125 mmol/L, K 3.8 mmol/L. What is the likely cause of their symptoms and hyponatraemia, and how would you manage it?”
“When accessing the femoral artery in the groin, what structures form the floor of the femoral triangle, and what significant structure lies immediately medial to the artery within the triangle?”
Example scenarios
A sample of the MRCS B scenarios you can practise, each as a spoken conversation.
“I would like to ask you about the femoral triangle. What are its boundaries and contents, and what lies immediately medial to the femoral vein?”
“A 68-year-old is 24 hours after an emergency laparotomy. He is passing little urine. Here is his arterial blood gas. Talk me through it.”
“A 34-year-old woman is listed for a laparoscopic cholecystectomy for symptomatic gallstones. Explain the operation to her and take her consent.”
“You are the surgical core trainee on call. Telephone the vascular registrar to refer a 71-year-old man with a cold, painful right leg.”
MRCS B dates 2026–27
The next MRCS B sitting we hold is: 7–10 November 2026 (Egypt, Cairo). Checked against Royal College of Surgeons of England on 23 September 2026.
Time until 7–10 November 2026 (Egypt, Cairo)
— d — h — m — sMRCS Part B (OSCE) runs as several fixed diets a year, delivered jointly by the surgical royal colleges (RCS England, RCSEd, RCPSG, RCSI) through ICBSE; venues and exact days vary by college and diet.
Exam dates change. MedMock is not affiliated with Royal College of Surgeons of England; confirm every date, application window and venue on the official site before you book. Royal College of Surgeons of England
MRCS B practice — your questions answered
How does the feedback work?
When you finish a station you can have it marked, and the scorecard comes back in seconds — what you did well, what cost you marks, and exactly what to work on next. Scorecards, mark schemes and model answers are included at no extra credit cost.
Can I practise specific MRCS B stations?
Yes. You can pick any of the 6 stations to drill a weak area, or run a Full Mock that takes you through the stations MedMock practises, back to back.
How much does it cost?
You can start with a one-off £5 taster: 30 credits, which is 30 minutes of speaking practice, with no subscription. After that, or at any time, you can choose a monthly plan, which includes a monthly credit allowance. Current prices are on the pricing page.
Formats change from year to year: check the official candidate guidance or applicant handbook from the body that runs your exam or interview (the Royal Colleges, NHS England, the GMC and others) for your sitting.
Ready for your MRCS B OSCE?
Rehearse real MRCS B scenarios out loud and get instant, examiner-style feedback.
- Instant, personalised feedback
- Real voice-to-voice conversation
- Repeatable attempts, a different run every time
Guides to help you prepare
Be ready for your MRCS B OSCE before you walk in
Start with the £5 taster, a one-off payment for 30 credits: practise MRCS B OSCE scenarios out loud and get any of them marked when you are ready.
Practise MRCS B stations