Infection vs Inflammation
When to use each in English, with meaning, register, and examples.
Infection
Top 1,000 (very common)B2noun
Inflammation
Top 3,000 (common)
Most common: Infection
| Infection | Inflammation | |
|---|---|---|
| Pronunciation | 🇬🇧 /["/ɪnˈfekʃn/"]/🇺🇸 /["/ɪnˈfekʃn/"]/ | 🇬🇧 //ɪnˌflæməˈteɪʃən//🇺🇸 //ɪnˌflæməˈteɪʃən// |
| Meaning | When germs or bacteria get into the body and make you sick. | Swelling and redness in the body, usually due to injury or infection. |
| Example | The doctor confirmed that the patient had a bacterial infection in his lungs. | The doctor explained that inflammation is a natural response to injury. |
| Register | Neutral | Neutral |
| How common | Top 1,000 (very common) | Top 3,000 (common) |
| CEFR level | B2 | - |
| Part of speech | noun | |
| Collocations | nasty, serious, severe, have, suffer, suffer from, develop, occur, spread, in infection, infection from, infection through, a cause of infection, the onset of infection, resistance to infection, nasty, serious, severe, have, suffer, suffer from, develop, occur, spread, in infection, infection from, infection through, a cause of infection, the onset of infection, resistance to infection | chronic inflammation, acute inflammation, reduce inflammation, inflammation response, inflammation markers |
| Antonyms | health, wellness | - |
| Common mistakes | Confused with 'inflection' (change in speech), Using 'infection' to refer to non-medical situations, Incorrectly stating a person is an 'infection' instead of having an 'infection' | Confused with 'inflation' which refers to rising prices., Using it in non-medical contexts without clarifying meaning., Incorrectly pronounced as 'in-flam-a-tion', the correct pronunciation separates syllables differently. |
| Usage notes | Use 'infection' in medical or health contexts. It's appropriate for conversations with healthcare professionals or when discussing illnesses. Avoid using it in casual or non-serious discussions. | It's commonly used in medical contexts to describe a response to injury or infection. Avoid using it in casual conversations unless discussing health topics. |
See it in real clips
Frequently asked questions: Infection vs Inflammation
What's the difference between Infection and Inflammation?
Infection: When germs or bacteria get into the body and make you sick. Inflammation: Swelling and redness in the body, usually due to injury or infection.
Which is more common: Infection and Inflammation?
Infection is the most common in everyday English.
Can you show an example of each?
Infection: The doctor confirmed that the patient had a bacterial infection in his lungs. Inflammation: The doctor explained that inflammation is a natural response to injury.
Can I use Infection and Inflammation interchangeably?
Not always. Infection and Inflammation are related and overlap in some contexts, but they differ in register, how common they are, and usage, so swapping one for another can change the meaning or tone. Check the differences above before substituting.