Journal Guide
Publishing in BMJ Open: Fit, Timeline & Submission Guide
Methods-first open access for rigorous clinical and public-health research where transparent reporting matters more than novelty.
Should you submit here?
Submit if BMJ Open is a better fit when the manuscript's value is sound design, clear reporting, and transparent limitations rather than a novelty story. Be careful if BMJ Open checks CONSORT, STROBE, PRISMA compliance before papers go to review.
2.5
Impact Factor
27%
Acceptance Rate
134 days median with review
Time to First Decision
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What BMJ Open Publishes
BMJ Open publishes medical research across clinical medicine, public health, and epidemiology when the study is transparently reported and the conclusions match the design. Its defining features are open peer review, publication of reviewer reports and previous manuscript versions for accepted papers, continuous publication, and genuine room for protocols, qualitative studies, null findings, and sound applied clinical research.
- Clinical medicine research across all specialties and settings
- Public health and epidemiology studies with methodological rigor
- Health services research and health economics evaluations
- Qualitative research following appropriate reporting guidelines
- All study designs: RCTs, cohort studies, case-control, cross-sectional surveys, diagnostic studies
- Study protocols and registered reports (pre-publication of methods)
- Negative results and null findings from well-designed studies
Editor Insight
“BMJ Open is strongest when the manuscript is methodologically sound, transparently reported, and useful to a broad medical or public-health audience even if it is not a flagship-journal story. In our pre-submission reviews, the successful BMJ Open route usually starts with disciplined claims, complete reporting checklists, clear ethics and data-sharing language, and comfort with open peer review. If the manuscript needs inflated novelty language to feel important, BMJ Open is probably not the fix; the paper needs reframing or a different venue.”
What BMJ Open Editors Look For
Methodological soundness over novelty
BMJ Open is a better fit when the manuscript's value is sound design, clear reporting, and transparent limitations rather than a novelty story. Weak methods, incomplete reporting, or overstated conclusions still fail quickly.
Complete, transparent reporting
Reporting checklists (CONSORT, STROBE, PRISMA, etc.) aren't suggestions. They're requirements. BMJ Open checks compliance and will send papers back for incomplete reporting before peer review even starts.
Conclusions that don't overreach
The fastest path to rejection is claiming your exploratory pilot study 'demonstrates' something definitive. If your findings suggest, indicate, or raise questions, say that. Don't pretend preliminary data is conclusive.
Comfort with open peer review
Reviewer names are published. Reviewer reports are published. Previous manuscript versions are published. If you're uncomfortable with this level of transparency, BMJ Open isn't the right fit.
Patient and public involvement, documented
BMJ Open increasingly expects meaningful patient and public involvement in research design and conduct. This isn't always required, but when relevant, you need to document it clearly.
Data sharing and reproducibility
Data availability statements are mandatory. Share data in public repositories when possible, or explain the access boundary clearly when privacy, consent, or governance limits sharing.
Why Papers Get Rejected
These patterns appear repeatedly in manuscripts that don't make it past BMJ Open's editorial review:
Skipping reporting checklists
BMJ Open checks CONSORT, STROBE, PRISMA compliance before papers go to review. Missing items get flagged immediately. Complete the checklist properly at submission, not as an afterthought.
Treating it as a backup journal without reframing
A paper rejected from The BMJ or a specialty journal may fit BMJ Open, but only after the framing matches a soundness-led venue. Inflated practice-changing language should be removed before transfer.
No clear research question
Descriptive studies without a focused question or hypothesis struggle. Even exploratory work needs a clear aim. 'We collected data and looked for patterns' isn't a research question.
Weak justification for sample size
Reviewers will ask why you chose that sample size. 'We recruited as many as we could' isn't good enough for confirmatory studies. Power calculations or clear pragmatic justification are expected.
Ignoring the open access fee
The current BMJ Open cluster uses £2,390 as the APC planning value. Confirm institutional agreements, waivers, discounts, VAT, and regional tax exposure before submission rather than after acceptance.
Submitting case reports or opinion pieces
BMJ Open doesn't publish individual case reports, opinion pieces, or commentaries. These get immediate desk rejection. Read the article types before you submit.
Does your manuscript avoid these patterns?
The Free Readiness Scan reads your full manuscript against BMJ Open's criteria and flags the specific issues most likely to cause rejection.
Insider Tips from BMJ Open Authors
Open peer review makes weak reporting visible
Reviewer reports and previous manuscript versions can sit beside the accepted paper. That transparency helps strong reporting, but it also exposes vague methods, evasive limitations, and defensive revision responses.
Protocols and negative results genuinely welcome
Unlike journals that claim to accept these but rarely do, BMJ Open actually publishes study protocols and null findings. This reduces publication bias and benefits the research community. If you have well-designed negative results, this is one of the few places that will take them seriously.
The 134-day median matters for planning
BMJ Open currently reports 134 days to first decision with review. If grant, thesis, promotion, or job-cycle timing matters, compare the review-time owner page before treating BMJ Open as a low-friction route.
Fee waivers exist for low- and middle-income countries
BMJ offers full waivers for authors in countries on the Research4Life Group A list. Discounts available for Group B. Apply at submission. The editorial decision is separate from fee considerations.
Qualitative research has a real home here
BMJ Open publishes qualitative and mixed-methods studies following appropriate reporting standards. This is rare among high-visibility medical journals. If you're doing qualitative health research, this is often your best open-access option.
The 27% acceptance rate means rejection is common
Don't confuse 'publishes all study types' with 'easy to get in.' Most submissions still get rejected, usually for methodological weaknesses or incomplete reporting. The bar for rigor is real.
Continuous publication means no waiting for issues
Papers publish online immediately after acceptance, not in batches. This gets your work out faster than journals that wait for issue assembly.
BMJ Open is part of the BMJ Publishing Group family
Papers sometimes transfer between BMJ journals. If you're rejected from a specialty BMJ journal, editors may suggest BMJ Open. Transfers with reviews can save time.
The BMJ Open Submission Process
Initial submission checks
1-2 weeksStaff and editors screen for reporting completeness, ethics statements, data availability, conflicts of interest, and whether the article type fits BMJ Open.
Editorial triage
2-4 weeksEditors assess scope, methodological soundness, reporting completeness, and whether the conclusions are proportionate to the data. The journal is not novelty-first, but weak design or weak reporting still gets filtered.
Peer review (open)
8-12 weeks for reviews to come inAt least 2 reviewers. Names will be published alongside the paper if accepted. Reviewers assess methods, reporting completeness, and whether conclusions match data. Not asked to judge novelty or impact.
Editorial decision
134 days median total to first decisionAccept, minor revision, major revision, or reject. Decisions based on reviewer input and editor assessment. Revision requests focus on improving reporting and addressing methodological concerns.
Revision and acceptance
Variable; 45 days typical for revision windowAddress reviewer comments. Responses to reviewers will be published. Be thoughtful and professional. Final acceptance after satisfactory revision.
Publication
1-2 weeks after final acceptancePublished online on a continuous basis with prepublication history, reviewer reports, and author responses available as part of the journal's transparency model.
BMJ Open by the Numbers
| 2025 Impact Factor(2026 Journal Citation Reports release) | 2.5 |
| Acceptance rate | 27% |
| Time to first decision with review | 134 days median |
| Article processing charge | £2,390 GBP (~$3,000 USD) |
| 2025 content views | 5.82 million |
| JIF rank in Medicine, General & Internal | 92/336 |
| CiteScore / SJR(BMJ Open about page) | 4.1 / 0.93 |
| Publication model | Fully open access, continuous |
Before you submit
BMJ Open accepts a small fraction of submissions. Make your attempt count.
Start with the Free Readiness Scan. Unlock the Full Review from $39, with local pricing shown before checkout. If you need deeper submission planning, choose the Submission-Ready Dossier. The full report is calibrated to BMJ Open.
Article Types
Research
No strict limit; conciseness valuedOriginal research across all study designs: RCTs, cohort studies, case-control, cross-sectional, qualitative, diagnostic, systematic reviews, meta-analyses.
Protocol
Similar to research articlesStudy protocols describing planned research. Allows community feedback before execution and reduces publication bias.
Systematic Review
No strict limitSystematic reviews and meta-analyses following PRISMA reporting guidelines.
Methodology
Similar to research articlesPapers describing new research methods or improvements to existing methods.
Landmark BMJ Open Papers
Papers that defined fields and changed science:
- Global, regional, and national disability-adjusted life-years for 359 diseases and injuries (GBD collaborators, multiple years)
- The REporting of studies Conducted using Observational Routinely-collected health Data (RECORD) statement (Benchimol et al., 2015)
- Factors associated with COVID-19 vaccine hesitancy (multiple country studies, 2020-2022)
- Long COVID and post-acute sequelae studies (2020-2023)
- Protocol papers for major public health trials and cohort studies
Preparing a BMJ Open Submission?
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Primary Fields
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Related Journal Guides
- Publishing in The BMJ (British Medical Journal)
- Publishing in PLOS ONE
- Publishing in Scientific Reports
- Publishing in RNA
Latest Journal-Specific Guides
- Submission guideBMJ Open Submission GuideA package-readiness guide to BMJ Open covering reporting discipline, transparency expectations, and what must be stable before submission.
- Journal assessmentIs BMJ Open a Good Journal? An Honest AssessmentBMJ Open fits sound clinical work, protocols, and negative results. When a selective specialty journal is the better call.
- Desk rejectionHow to Avoid Desk Rejection at BMJ OpenA practical BMJ Open desk-rejection guide covering reporting discipline, study-design fit, and the common mistakes that stop papers before review.
- Review timelineBMJ Open Review Time: What Authors Can Actually ExpectBMJ Open is not mainly a speed journal. The useful submission question is whether the open-review, broad-medicine model fits your paper better than a tighter specialty venue.
More Guides for This Journal
- Acceptance rateBMJ Open Acceptance Rate: What 27% Actually MeansBMJ Open now reports a 27% acceptance rate on its journal statistics page. The real filter is still methodological soundness, transparent reporting, and broad medical relevance.
- Impact factorBMJ Open Impact Factor 2026: 2.5 - What That Number Actually Means for Your PaperBMJ Open impact factor is 2.5 (2025 JIF, 2026 JCR). See Q2 rank, 5-year IF, CiteScore, acceptance rate, and fit.
- Publishing costsBMJ Open APC and Open Access: The Clinical Megajournal With Published Peer ReviewsBMJ Open charges 2,390 GBP before tax for gold open access. Compare agreements, waivers, open review, clinical fit, and nearby journals.
- Submission processBMJ Open Submission Process: What Happens After You UploadA workflow-focused BMJ Open submission process guide covering what happens after upload, how open review changes the process, and where papers stall.
- Manuscript prepBMJ Open Cover Letter: What Editors Actually Need to SeeBMJ Open uses open peer review and mandatory reporting checklists. Missing a checklist is the single most common trigger for desk rejection, and it is entirely preventable.
- Publishing guideBMJ Open Formatting Requirements: Complete Author GuideBMJ Open author-guideline checklist for word limits, abstract headings, EQUATOR files, references, figures, and Word submission.
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