Tell me please which one of the folowing sentences is correct.

Because I have pain in my arm, I cannot pull it.

Because I have a pain in my arm, I cannot pull it.

  • (+1) I am a learner, I use the variant with a usually, since it's pointing out a very specific instant of pain. – Cardinal May 26 at 17:42

Both are correct in colloquial English.

One uses pain as a countable noun, e.g. a pain in my arm and a pain in my leg, the other as uncountable, which, like water, does not require an article. It's a very small difference, and would go unnoticed in connected speech.

That said, a doctor would be more likely to use the uncountable form, e.g. Do you have pain when walking?

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