Prepositions before nouns

Should you say “of pain” or “in pain”?

In pain is the normal expression for suffering physically or emotionally. Of pain appears only in larger structures such as “the cause of pain.”

Quick answer

Correct choice

Use in pain to describe someone who is suffering. “Of pain” is not used alone in this meaning, although pain commonly appears in phrases like “fear of pain” or “treatment of pain.”

He was clearly in pain after the accident.
The patient remained in pain overnight.
They discussed the treatment of pain in older adults.

Choose the pattern by meaning

These forms are not interchangeable. Choose the construction by meaning, not by which preposition appears most often.

1
in pain

Describing suffering

Use in pain when someone feels physical or emotional pain.

She looked in pain during the interview.
The dog seemed in pain after surgery.
2
pain of + experience

Naming a type or source of pain

Pain of is used when specifying the kind or source of suffering.

the pain of loss
the pain of rejection
3
treatment of pain

Using “of pain” in larger noun phrases

Of pain can follow another noun such as treatment, cause, or relief.

treatment of pain is improving.
relief of pain was immediate.

See the difference in context

The same subject can take different constructions because each sentence answers a different question.

Construction
Example
Meaning
in pain
After the fall, he was in pain.
Standard expression for suffering.
of pain
Doctors study the causes of pain.
Used after another noun, not as a standalone phrase.
pain of
She spoke about the pain of separation.
Specifies the type or source of pain.

Common mistakes

Some combinations appear in real text but do not mean what learners often assume.

Using “of pain” instead of “in pain”

To describe suffering, English uses in pain.

✕ She was of pain. ✓ She was in pain.

Omitting the article in set phrases

Many expressions need the before pain phrases.

✕ treatment of severe pain was delayed ✓ the treatment of severe pain was delayed

Confusing “pain of” and “in pain”

Pain of names a type of suffering; in pain describes a condition.

✕ He was pain of loss. ✓ He was in pain after the loss.

Quick practice

Choose the expression that matches the intended meaning.

1. The injured player was clearly ___.
2. They discussed the ___ failure.
3. Doctors focus on the treatment ___ chronic pain.

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Frequently asked questions

Is “in pain” the standard phrase?

Yes. It is the normal way to say someone is suffering.

Can “of pain” ever be correct?

Yes, inside larger phrases such as “cause of pain” or “treatment of pain.”

What is the difference between “pain of” and “in pain”?

“Pain of” names a kind of suffering, while “in pain” describes someone’s condition.

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