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
which causes
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "which causes" is correct and usable in written English.
You can use it in a sentence when you need to describe the result of a certain action or situation. For example: "The heavy rainfall, which causes flooding in the streets, has caused a huge amount of damage."
✓ Grammatically correct
News & Media
Science
Wiki
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
60 human-written examples
Which causes more depression and anxiety?
News & Media
Deforestation, which causes local warming, exacerbates this.
News & Media
Which causes do students find most compelling?
News & Media
We now know that God plays dice, which causes uncertainty.
News & Media
Now you have chosen which causes to support this year.
News & Media
Commuting is connected to social isolation, which causes unhappiness".
News & Media
There's iron, lack of which causes widespread anemia.
News & Media
The company also agreed to make major changes at another plant to reduce emissions of nitrogen oxide, which causes smog, and sulfur dioxide, which causes acid rain.
News & Media
They are expected to achieve a two-thirds reduction in emissions of sulfur dioxide, which causes acid rain, and nitrogen oxide, which causes smog.
News & Media
Besides, for even, for, which causes instability.
What bacteria are most closely related to Bacillus anthracis (which causes anthrax) or Clostridum botulinum (which causes botulism) or Treponema pallidum (which causes syphilis)?
Expert writing Tips
Best practice
When using "which causes", ensure the clause is nonrestrictive and set off by commas. This clarifies that the information is additional rather than essential to the sentence's meaning.
Common error
Avoid using "which causes" in restrictive clauses (essential to the sentence's meaning). In such cases, "that causes" is more appropriate. If the clause is essential and defines the noun, use "that"; if it adds extra information, use "which" with commas.
Source & Trust
81%
Authority and reliability
4.5/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "which causes" functions as a relative clause, introducing additional, non-essential information about the noun it modifies. As Ludwig AI explains, this clause is set off by commas and provides further detail about the cause-and-effect relationship. It connects a cause to its subsequent effect.
Frequent in
News & Media
25%
Science
48%
Wiki
20%
Less common in
Formal & Business
3%
Reference
2%
Encyclopedias
2%
Ludwig's WRAP-UP
In summary, "which causes" is a frequently used relative clause that serves to explain the cause of something. As Ludwig AI confirms, it is grammatically sound and appears most often in scientific and news-related contexts, while also showing up in wiki entries. When using "which causes", remember that it introduces nonrestrictive clauses (supplementary, non-essential information) and should be set off by commas. Alternatives include "that leads to" and "resulting in". Pay attention to the distinction between "which" and "that" to ensure grammatical accuracy.
More alternative expressions(6)
Phrases that express similar concepts, ordered by semantic similarity:
that leads to
Replaces "which causes" with a more direct causal link.
resulting in
Emphasizes the outcome or consequence.
that produces
Highlights the generative aspect of the cause.
giving rise to
Suggests a more gradual or developmental process.
that generates
Focuses on the creation or origination of the effect.
that triggers
Implies a sudden or immediate effect.
attributable to
Formal way to indicate causation or origin.
due to which
Inverts the structure while maintaining causality.
because of which
Similar to "due to which" but slightly more common.
that precipitates
Indicates a hastening or accelerating effect.
FAQs
How do I use "which causes" in a sentence?
Use "which causes" to introduce a nonrestrictive clause, providing additional information that isn't essential to the sentence's core meaning. Remember to set it off with commas.
What's the difference between "which causes" and "that causes"?
"Which causes" introduces nonrestrictive clauses (additional information, set off by commas), while "that causes" introduces restrictive clauses (essential information, no commas). For example, "The rain, which causes flooding, is heavy" vs. "The rain that causes flooding is dangerous".
What can I say instead of "which causes"?
You can use alternatives like "that leads to", "resulting in", or "that produces" depending on the context.
Is it grammatically correct to start a sentence with "which causes"?
Starting a sentence directly with "which causes" is generally grammatically incorrect. "Which" should refer back to a noun in the main clause. Restructure the sentence to include the noun before the "which causes" clause or consider alternative phrasings.
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
81%
Authority and reliability
4.5/5
Expert rating
Real-world application tested