Authorship does not remove the need for attribution
Text recycling occurs when an author reuses language from an earlier disseminated work in a new one. “Self-plagiarism” can confuse the issue because the author has not misappropriated another person’s authorship. The ethical concern is whether readers and editors receive an accurate account of novelty, origin and scale.
Some recurring technical wording is unavoidable. Instrument names, standard definitions and an identical procedure may leave limited alternatives. Repeating results or discussion is much more likely to duplicate the claimed contribution. Global similarity scores cannot make this section-sensitive judgement.
Ask what the reused passage does
An introduction should establish the present question. A large block from an earlier article may repeat outdated literature and an old novelty claim. Cite the previous work and develop the current rationale from the new question rather than cosmetically changing synonyms.
Methods can legitimately resemble an earlier report when the procedure is the same. Even then, readers need to see modifications, population differences and actual parameters. A journal may permit a concise cross-reference to a detailed protocol. Results and discussion require stronger separation because they carry findings and interpretation.
Separate editorial ethics from reuse rights
Writing the first article does not guarantee that you still control every reuse right. A publishing agreement may grant exclusive rights. An open licence may permit reuse but still require attribution, a licence notice or an indication of changes. Permission does not remove the scholarly obligation to describe what is new.
Review the agreement, licence and manuscript version. Figures, tables and substantial extracts may require different treatment from a short paraphrase. If the position is unclear, ask the rights holder and editor in writing rather than assuming that author status is permission.
Do not use paraphrase to conceal redundancy
Substituting synonyms may lower a match score while leaving the same previously published contribution in place. Start with purpose: is the old passage necessary method, citable background or an already reported result? The answer determines whether to cite, condense, redesign or remove it.
When background is needed, synthesise the proposition for the current argument and cite its source. When methods are identical, describe them accurately and cross-reference details. If results reappear, label the work as reanalysis, replication, review or authorised secondary publication as appropriate; do not present it as an unqualified first report.
Maintain a reuse register with old and new locations. Co-authors can then verify that revisions do not erase provenance. A text-matching report may help find passages, but it cannot resolve novelty, permission or disciplinary convention.
Make the relationship visible in two places
Cite earlier work where it supports the manuscript. Disclose substantial overlap separately in the cover letter and provide the earlier text if the editor needs it. State which sections or materials recur and what the new paper contributes. A generic declaration that “some material appeared previously” is too vague.
The duplicate-publication audit reviews the whole scientific contribution. The conference-abstract decision tree handles a common predecessor. The publication ethics hub connects related guidance. The single foundation route is the evidence-review guide.
Ask a colleague to read marked passages without the project history. Can they identify what appeared before, what was reused and what is genuinely new? Improve the declaration if they cannot. The aim is not artificial zero overlap, but an honest relationship between works.
Final passage-level audit
- Identify the earlier work and exact version.
- Classify the section and function of reuse.
- Define the new manuscript’s contribution.
- Check journal policy, agreement and licence.
- Attribute reused material where readers encounter it.
- Disclose substantial overlap to the editor.
- Archive permissions and final passage locations.
Keep the register with the submitted manuscript. If editors request changes, update both the passage and its provenance entry. A clean match score should never be allowed to replace a truthful publication history.