Used and loved by millions
Since I tried Ludwig back in 2017, I have been constantly using it in both editing and translation. Ever since, I suggest it to my translators at ProSciEditing.

Justyna Jupowicz-Kozak
CEO of Professional Science Editing for Scientists @ prosciediting.com
treated by
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "treated by" is perfectly acceptable and usable in written English.
For example, "The patient was treated by a renowned doctor."
✓ Grammatically correct
News & Media
Science
Encyclopedias
Table of contents
Usage summary
Human-verified examples
Expert writing tips
Linguistic context
Ludwig's wrap-up
Alternative expressions
FAQs
Human-verified examples from authoritative sources
Exact Expressions
58 human-written examples
They are treated by means of psychoanalysis.
News & Media
The condition is treated by circumcision.
Encyclopedias
The patients were treated by 6,113 doctors.
News & Media
She was successfully treated by Bowyer.
News & Media
Sick gorillas are treated by veterinarians.
News & Media
"S4C has been poorly treated by the new government.
News & Media
"They were treated by trained first aiders at the hotel".
News & Media
They feel unfairly treated by the media too.
News & Media
The Chinese writer is treated by police doctors.
News & Media
Burke was treated by paramedics and almost quit.
News & Media
One woman treated by Radovanovic's colleagues gave birth in Macedonia.
News & Media
Expert writing Tips
Best practice
When using "treated by", ensure the context clearly indicates who or what is providing the treatment or action. This avoids ambiguity and ensures clarity in your writing.
Common error
Avoid using "treated by" when an active voice construction is more appropriate. For example, instead of "The symptoms were treated by the doctor", consider "The doctor treated the symptoms" for a more direct and concise sentence.
Source & Trust
85%
Authority and reliability
4.5/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "treated by" functions as a passive voice construction, indicating that someone or something receives treatment or action from a specified agent. Ludwig AI confirms its acceptability in written English.
Frequent in
Science
35%
News & Media
35%
Encyclopedias
5%
Less common in
Formal & Business
0%
Wiki
0%
Reference
0%
Ludwig's WRAP-UP
The phrase "treated by" is a versatile passive construction widely used across diverse contexts to indicate the agent of treatment or action. Ludwig AI validates its grammatical correctness and common usage. While generally acceptable, ensure clarity by specifying the agent providing the treatment. Alternatives like "received treatment from" or "cared for by" offer similar meanings but may suit different nuances. With a neutral register and frequent appearance in scientific, news, and media sources, "treated by" remains a reliable choice for effective communication.
More alternative expressions(6)
Phrases that express similar concepts, ordered by semantic similarity:
received treatment from
Focuses on the action of receiving treatment, specifying the source.
cared for by
Emphasizes the aspect of care and attention given during treatment.
managed by
Highlights the management and handling of a condition or situation.
overseen by
Focuses on the supervision and guidance provided.
handled by
Implies a specific method or approach used in dealing with something.
administered by
Refers to the act of giving or applying a treatment or procedure.
attended to by
Highlights the act of being looked after or taken care of.
subjected to by
Indicates being exposed to a particular action or influence.
given attention by
Emphasizes the act of receiving focused care or consideration.
dealt with by
Focuses on the process of addressing or resolving an issue or problem.
FAQs
How is "treated by" used in a sentence?
"Treated by" indicates who or what is administering treatment or action. For example, "The patient was "treated by" a specialist" or "The water was "treated by" a filtration system".
What are some alternatives to "treated by"?
Alternatives include "received treatment from", "cared for by", or "managed by", depending on the nuance you want to convey.
Is it better to use "treated by" or an active voice construction?
While "treated by" is grammatically correct, using an active voice construction can often make your writing more direct and concise. For example, instead of "The infection was "treated by" antibiotics", you could say "Antibiotics treated the infection".
What does "treated by" imply in a medical context?
In a medical context, ""treated by"" typically implies that a healthcare professional or a specific medical intervention was used to address a patient's condition.
Editing plus AI, all in one place.
Stop switching between tools. Your AI writing partner for everything—polishing proposals, crafting emails, finding the right tone.
Table of contents
Usage summary
Human-verified examples
Expert writing tips
Linguistic context
Ludwig's wrap-up
Alternative expressions
FAQs
Source & Trust
85%
Authority and reliability
4.5/5
Expert rating
Real-world application tested