Is it correct to say:
He couldn't stand for long because of pain to his leg.
or should it be:
He couldn't stand for long because of pain in his leg.
or are both acceptable, or is neither?
Is it correct to say:
He couldn't stand for long because of pain to his leg.
or should it be:
He couldn't stand for long because of pain in his leg.
or are both acceptable, or is neither?
to would imply an external force exerting the feeling.
in would imply the leg itself is creating the feeling.
"Pain" is a bit uncommon when combined with "to", but examples can be had:
The impact of the baseball bat sent excruciating pain to his leg.
"Pressure" works easily in both cases, and may illustrate the difference:
He couldn't stand for long because of pressure to his leg.
A compression sock is applying external pressure to his leg, so he cannot stand.
He couldn't stand for long because of pressure in his leg.
The muscles and skeleton of his leg feel as if pressure is being applied due to swelling, but no "external" pressure is actually being applied.
It should be:
He couldn't stand for long because of pain in his leg.
You can see a detailed article about uses of "in" at : Talk english