Preposition -on/in

[tranlam1609]

Hi! I have a gap filling sentence:

My father has a pain .... his chest?

I wonder If I can use "on or in" to fill in the gap.
Thanks so much for your help.

[emsr2d2]

Which one do you think is correct?

[tranlam1609]

I think "in" is correct. But when I asked google it also gave "on"

[emsr2d2]

Don't believe everything you read on Google. You are right. I won't go so far as to say that having a pain on your chest is absolutely impossible but I have never had reason to use it, and I've never heard it used.

People with chest pain say "I have a pain in my chest" - they mean their chest cavity, not the surface area.

[tranlam1609]

You are so kind to help me. With your helps, my English will improve a lot.