Maybe math tests make your stomach drop. Maybe physics feels like a different language. And somewhere in the back of your head is a worry: does this end my plan to become a doctor?
Short version: probably not. But it helps to know what is actually expected.
If you want the full picture of every subject, start with our guide, What Subjects Should I Take in High School If I Want to Be a Doctor? This post goes deeper on just two of them: math and physics.
Jump to section - The short answer - How much math you actually use - When physics is required and when it is not - What changes by country - What to do if math or physics is hard for you - FAQ
Direct answer: You usually need some math and some physics, but you do not need to be the best in your class at either. Math is highly recommended, and many medical schools require or recommend physics. Biology and chemistry matter more. Requirements differ by school and country, so check each school's own rules.
The short answer
Yes, you will meet math and physics on the way to medicine. No, a weak grade in one of them is not automatically the end.
Biology and chemistry are the two subjects almost every route treats as the core. Math and physics sit just behind them. They support the core. They are not the whole story.
How much math you actually use
You don't need to love calculus. You do need to be comfortable with numbers.
Statistics over calculus
Our subjects guide puts it plainly: statistics is arguably more useful than calculus for medicine. Reading data, thinking about probability and understanding how research was done all lean on statistics.
Competent is the goal
Nobody is asking you to be a math prodigy. The aim is steady, solid work. If you can follow a graph, handle a percentage and think through a simple probability, you are building the right base.
When physics is required and when it is not
This one depends more on where you apply.
Many medical schools require or recommend physics. Some do not ask for it in high school at all. Even then, basic ideas about forces, energy and mechanics help later with topics like physiology and imaging.
In the US, physics is part of the pre-med requirements you take in college, along with biology, chemistry, some psychology and some statistics. You can read more about how that works in What Does Pre-Med Actually Mean?
What changes by country
Here is what our existing guides say. Treat it as a starting point, then check each school.
| Route | Math | Physics | Note |
|---|---|---|---|
| US | Highly recommended; statistics may be more useful than calculus | Recommended in high school; part of college pre-med requirements | Physics and some statistics are taken in college |
| UK | Flexible third subject option, alongside mandatory Biology and Chemistry | Flexible third subject option | Biology and Chemistry are mandatory for most medical schools |
| IB | One option for the third Higher Level subject | Not one of the named HL options in our guide | HL Biology and Chemistry plus one more |
For a side-by-side look at the two biggest systems, see US vs UK: Becoming a Doctor.
Requirements differ by school and country. Always read each school's own published requirements before you choose your subjects.
What to do if math or physics is hard for you
First, breathe. Struggling with a subject is common, and it says nothing final about the doctor you could become. Our chemistry post makes the same point: being good at a subject and being a good doctor are different skills.
A few practical moves: - Aim for steady and competent, not perfect. - Ask for help early. A teacher, a tutor or a friend who gets it. - If you get a choice, lean toward statistics. - Look up what your target schools actually ask for before dropping anything. - Keep the rest of your profile strong. Our guide on building a pre-med profile in high school covers that.
If you want to see what medicine actually feels like before you choose, our free masterclass is a low-pressure place to start. You can also browse our programs.
FAQ
Can I become a doctor if I'm bad at math?
Often, yes. You need to be competent, not brilliant. Math is highly recommended, but biology and chemistry carry more weight. Check what each school you like actually asks for.
Do I need calculus for medicine?
Not always. Our subjects guide says statistics is arguably more useful than calculus for medicine. Requirements differ by school, so read each school's published rules.
Is physics required for medical school?
Many medical schools require or recommend it. In the US, physics is part of the pre-med requirements you take in college. In the UK, it is one option for a flexible third subject.
Will taking math and physics guarantee I get in?
No. No subject choice guarantees admission. Schools look at your whole profile, not just one subject.