What Should You Do if You Discover Uncited Borrowed Material in Your Own Draft?

You Found Suspicious Material in Your Draft. What Should You Do Now?

You are reviewing a manuscript and encounter a paragraph that feels strangely familiar. Perhaps the prose is more polished than you remember writing. Maybe a citation placeholder disappeared. You search your notes and discover that part of the passage came from another paper, but the draft no longer identifies the source.

This is not the moment to make a few cosmetic edits and move on. Before you can fix the passage properly, you need to determine exactly what was borrowed, where it came from, and whether the problem involves copied wording, a paraphrased idea, data, results, a method, or some combination of these.

Trace the Source Before You Try to Repair the Passage

Fix the Provenance Problem, Not Just the Visible Sentence

First determine where the material actually came from

Before rewriting anything, preserve the questionable passage and identify its source. Search your research notes, reference manager, downloaded papers, draft history, collaborative documents, and other materials you used while writing.

This matters because you cannot choose the correct repair until you know what happened. A copied quotation that lost its quotation marks presents a different problem from a genuinely paraphrased idea whose citation disappeared. A borrowed result, figure, or methodological innovation raises yet another attribution question.

The U.S. Office of Research Integrity (ORI) advises researchers to make clear which ideas and data are their own and which derive from consulted sources. Its guidance also emphasizes that verbatim source text requires clear identification and citation, while paraphrases and summaries should identify the source of the information.

Determine what kind of borrowing occurred

Compare the draft directly with the source. Do not rely only on your memory of how you wrote the passage.

The broader question of what counts as plagiarism in research therefore matters before you decide how to repair the passage.

Do not assume that adding a citation fixes copied wording

Suppose the questionable paragraph reproduces several sentences from a source almost word for word. Adding "(Author, Year)" at the end identifies the source of the information, but it does not necessarily tell readers that the language itself was borrowed.

ORI's guidance on plagiarism of text states that verbatim text taken from another source should be clearly identified as quoted material and accompanied by citation. It also warns about patchwriting, in which authors retain source language while inserting, deleting, rearranging, or substituting words.

If you do not need the source's exact language, a genuine paraphrase may be preferable. That requires more than replacing synonyms. The resulting passage should be constructed in your own words and syntax while still citing the source of the borrowed content.

Do not rewrite merely to make a similarity match disappear

Once researchers discover problematic overlap, it is tempting to treat the similarity report as an editing target: change a word here, reverse a clause there, and continue until the highlighting vanishes.

That approach can preserve the underlying attribution problem while merely making it harder for software to detect. ORI describes cosmetic changes to source material as inappropriate paraphrasing. The relevant goal is not zero textual similarity. It is accurate representation of intellectual and textual provenance.

If your revised passage still follows the source sentence by sentence, reconsider whether you have actually produced independent prose. The absence of a universal threshold for how similar wording can be before it becomes plagiarism makes contextual inspection more useful than counting changed words.

A genuine paraphrase with a missing citation needs a different repair

Sometimes the writing itself is not the problem. You may have understood the source, reconstructed the material independently, and then lost the citation during editing.

In that case, the remedy may simply be to restore accurate attribution at the appropriate point. But first verify that the source actually supports the claim you have attached to it. Do not add a reference from memory merely because it seems likely to be the missing one.

Trace the original source rather than copying someone else's citation

Another problem arises when your draft contains a claim and citation copied from a secondary paper, even though you never read the cited original. Restoring that reference without checking it can falsely imply that you consulted the original source.

Whenever possible, locate and read the original material before citing it directly. If you cannot access it and your discipline permits secondary citation, represent that relationship transparently rather than disguising your actual source trail.

Check whether the problem extends beyond one paragraph

One unexplained passage may be isolated. It may also reveal a systematic weakness in your workflow. Perhaps copied quotations and paraphrases were stored together without labels. Maybe references were kept in a separate document and became detached during revision. Perhaps several coauthors contributed text without recording its sources.

Once you identify how the problem arose, search for other places where the same process could have produced similar errors. ORI specifically advises authors borrowing extensively from a source to make clear where source-derived ideas or data end and their own contributions begin.

If you cannot establish the provenance, uncertainty itself matters

You may occasionally find prose in an old draft and genuinely be unable to determine whether you wrote it independently or copied it into your notes months earlier. If distinctive material cannot be confidently traced, presenting it as unquestionably yours carries avoidable risk.

Search exact phrases where appropriate, inspect earlier versions, review your source library, and ask collaborators who may have contributed the passage. If its provenance still cannot be established, consider removing or independently reconstructing the passage from sources you can verify rather than guessing.

The timing of discovery changes what you can do

If the manuscript is still an internal draft, you generally have the greatest ability to repair it before it enters the publication process. If it has already been submitted, accepted, or published, silently editing your personal copy does not correct the version held by the journal.

COPE's guidance for plagiarism identified in submitted manuscripts shows that editors may distinguish minor copying from clearer or more extensive plagiarism and may seek explanation, revision, rejection, or institutional involvement depending on the circumstances. The appropriate response therefore becomes more formal once the work leaves your control.

If the issue is discovered before submission, use that opportunity. A draft is precisely where source-management mistakes should be found rather than defended.

How to Repair a Paragraph Whose Source Has Disappeared

Common Mistakes When Repairing Uncited Material

Use a Source Audit Rather Than a Cosmetic Rewrite

The safest response is procedural. Work from provenance to correction, not from highlighted text to superficial editing.

If the material entered the draft unintentionally, the question of whether accidental plagiarism is still plagiarism is separate from the immediate practical obligation to correct the attribution problem.

Audit the Passage Before Your Manuscript Leaves Your Control

Frequently Asked Questions About Uncited Material in a Draft

Trace First, Repair Second, Then Check Whether the Problem Is Broader

How to Cite This Guide

This guide is intended to be read, shared, and used in research, teaching, and academic work. If you draw on its ideas, explanations, or other content, please acknowledge the source by citing the guide. Doing so gives appropriate credit and helps your readers locate the original resource.