Mathematics as medicine undergraduate backup option

As far as I'm aware, the only courses that accept Medical personal statement are those that are somewhat involved with Medicine - that is, Biomedicine, Pharmacy, etc. Maths is, as I hope you appreciate, not very related to Medicine so I don't think they'll accept it. But, this is a crazy, crazy world so they just might? You could email some universities you want to apply for Maths and explain your situation and ask them if they'd accept a second personal statement...

But, I have to admit to you, it doesn't compute, wanting to apply to Medicine and Maths. It seems to me that's what someone undecided about Medicine would do. Is this the case? Would you mind enlightening us a little bit about this peculiar decision?

As you seem to have gathered, it is partly because I am not completely decided on medicine. I also really enjoy Maths and have found it to be a subject that I excel in so think it would be interesting to do at uni should I fail to be accepted to medicine. I didnt know that universities could accept secondary personal statement, is this common? I am planning on calling a few maths departments this week to see if they can enlighten me.

It's rare but it's not unheard of either. But it depends on the university and course - and probably how over or undersubscribed the course is, and you need to ask beforehand. Also note that you'd send the second statement directly to the university, bypassing UCAS. But it's honestly a bad idea, since it shows you're undecided and universities will not be big fans of that.

Medicine is a huge, huge commitment with very far-reaching consequences for your life. I'd advise you to be totally, completely, unequivocally and absolutely sure about Medicine before applying. If you're not sure, you really should think about applying to do Maths on all your options instead.

Is your suggestion that the OP should not select a fifth (backup - non medicine) option?

I am currently in year 13 studying Maths, FM, chemistry and physics and looking at studying medicine at university however am having some issues in choosing a 5th backup option. I want to do mathematics (or theoretical physics) but because my personal statement is only medical dont know if this is likely or achievable especially if I want to go to a decent university. Got 3300 on UCAT so pretty confident of getting at least interviews for medical schools but still want to get this right.
Is maths a reasonable backup option for medicine? Will having a medical personal statment reduce my chances of getting an offer to maths courses? Is it unrealistic to try to get into a higher ranked uni for a maths backup course?
Thanks.