Practical guidance from the Leading Tuition team
Book a Free ConsultationChoosing the right A-Levels is one of the most consequential decisions a prospective medical student will make. Unlike many university courses, medicine has firm subject prerequisites, and getting them wrong — even by one subject — can close the door to entire medical schools before you've written a single word of your personal statement. With competition for places intensifying each year and most UK medical schools receiving far more applications than they have spaces, your subject choices need to be deliberate, well-researched, and aligned with the specific requirements of the schools on your list.
Chemistry is required by virtually all UK medical schools. It is the one non-negotiable subject across the board. Whether you're applying to Edinburgh, King's College London, Manchester, or anywhere in between, Chemistry at A-Level is expected. The reasoning is straightforward: biochemistry, pharmacology, and physiology all draw heavily on chemical principles, and medical schools want to know you can handle that foundation before you arrive.
Biology is required or strongly preferred by the vast majority of UK medical schools. Most institutions list it as a second essential subject, and even those that technically allow an alternative will view Biology as the stronger choice. A small number of schools — including some with graduate-entry programmes — may accept Chemistry plus one other science, but for standard undergraduate entry, treating Biology as compulsory is the safest approach.
Beyond Chemistry and Biology, you need a third A-Level. A third science or Mathematics is broadly advantageous and viewed favourably by most admissions teams. Physics, Maths, and Further Maths all demonstrate strong analytical and quantitative reasoning, which becomes increasingly relevant as medical training incorporates more data interpretation and research literacy.
Oxford and Cambridge have stricter requirements than most. Oxford requires Chemistry and at least one of Biology, Physics, or Mathematics. Cambridge requires Chemistry and Biology, plus one further science or Maths. If Oxbridge is on your list, you should plan your subjects around their specific criteria from the outset, not as an afterthought in Year 12.
Once Chemistry and Biology are secured, your third A-Level gives you some flexibility. Here are subjects that tend to be viewed positively:
Humanities and social sciences are acceptable as a third choice at most medical schools, provided Chemistry and Biology are already in place. Schools like UCL, Bristol, and Sheffield do not penalise applicants for choosing a non-science third subject, and some actively welcome the breadth it brings.
Critical Thinking and General Studies are not counted by most medical schools. If either of these appears on your predicted grades list, admissions tutors will typically disregard them entirely. Taking one of these as a fourth subject is not harmful, but relying on them to meet any subject or grade requirement would be a serious mistake.
Similarly, some schools do not accept Applied Science or certain vocational qualifications as equivalent to traditional A-Levels for the purposes of meeting science requirements. If you are studying at a school or college that offers non-standard qualifications, it is worth contacting individual medical schools directly to confirm what they will and will not accept.
Media Studies, Business Studies, and similar subjects are not penalised outright, but they add little academic weight to a medicine application and may raise questions if they replace a more rigorous option.
Your A-Level subjects do more than satisfy entry requirements — they shape how the rest of your application is read. A student taking Chemistry, Biology, and Mathematics signals a particular academic profile: methodical, comfortable with abstraction, and likely to cope well with the scientific demands of a medical degree. A student taking Chemistry, Biology, and History signals something slightly different — broader intellectual curiosity, perhaps stronger written communication — and that can be an asset in interviews and personal statements if it is framed well.
Subject choices also interact with your UCAT preparation. The UCAT (used by the majority of UK medical schools, including those at Oxford, Cambridge, and Imperial following the abolition of the BMAT in 2023) tests verbal reasoning, quantitative reasoning, abstract reasoning, decision making, and situational judgement. Students with strong Maths backgrounds often find the quantitative reasoning section more manageable, while those with humanities experience sometimes perform better in verbal reasoning. Neither profile has a categorical advantage — but knowing your strengths helps you target your preparation.
For your personal statement, your subject choices provide the academic context for everything you write. If you are studying Psychology alongside Biology and Chemistry, you can draw on that to discuss mental health in medicine with genuine academic grounding. If you are studying History, you might explore the development of medical ethics or public health policy with more depth than a student who has not engaged with historical analysis.
Strong A-Level choices are necessary but not sufficient. Medical schools are looking for a combination of academic ability, relevant experience, and personal qualities. Most competitive applicants will have:
Leading Tuition works with students across all of these areas, but the subject foundation has to come first. No amount of interview coaching compensates for missing a required A-Level.
It is also worth noting that predicted grades matter enormously at the application stage. Most medical schools set minimum requirements of AAA, with many competitive schools expecting A*AA or equivalent. If your predicted grades are borderline, that is a conversation to have with your school early in Year 12, not in the autumn of Year 13.
Is Chemistry really required at every UK medical school?
Almost universally, yes. Chemistry is listed as a required A-Level by the overwhelming majority of UK medical schools, including all Russell Group institutions with medical programmes. There are a very small number of graduate-entry courses that may consider applicants without A-Level Chemistry if they have a relevant degree, but for standard undergraduate entry, you should treat Chemistry as non-negotiable.
Is Biology compulsory, or can I apply without it?
Biology is required or strongly preferred by most UK medical schools, but it is not universally compulsory in the same way Chemistry is. A handful of schools will accept Chemistry plus Physics or Maths as an alternative combination. However, the vast majority of successful applicants do take Biology, and applying without it significantly narrows your options. Unless you have a specific reason to avoid it, Biology should be part of your A-Level choices.
Can I retake AS-Levels to strengthen my application?
Since the decoupling of AS and A-Levels in England (from 2015 onwards), AS results are no longer a component of A-Level grades and carry limited weight in UCAS applications. Most medical schools focus on A-Level predicted and achieved grades rather than AS performance. If you are concerned about early results, the more impactful step is to focus on your full A-Level performance and, where necessary, discuss with your school whether a resit year is appropriate.
I have a mixed set of subjects — what should I do?
If you are already in Year 12 or 13 with a subject combination that does not meet the requirements of your target medical schools, act quickly. First, check the entry requirements of every school you are considering — some are more flexible than others. Second, speak to a careers adviser or a specialist tutor who understands medical admissions. In some cases, taking an additional A-Level or a foundation year may be an option. Leading Tuition can help you map your current subjects against realistic school choices and identify the strongest path forward.
Book a free consultation and we’ll help you find the right support for your child.
Book a Free Consultation