Journal Submission Specifications: Word Limits, Figure Limits & Reference Caps
Word limits, figure counts, and reference caps vary widely, from NEJM's strict 3,000-word cap and 35-reference limit to PLOS ONE and eLife with no hard limits at all. Submitting a manuscript that exceeds limits without an editor waiver leads to immediate returns-to-author.
This table covers 57 journals. Word counts are for the main text unless otherwise noted and typically exclude abstract, methods, references, and figure legends, but definitions vary by journal. Always verify against current author instructions before submission.
13
Strict ≤3,000w
20
Moderate 3–6k words
22
Flexible 6k+ or none
22
Structured abstract
Submission Specs by Journal
| Journal | Article Type | Word Limit | Figures/Tables |
|---|---|---|---|
| NEJM | Original Article | ~3,000 | 5 total |
| Lancet | Article | ~3,000 | 5 total |
| JAMA | Original Investigation | ~2,800 | 5 total |
| The BMJ | Research Article | ~3,400 | 6 total |
| Nature | Article | ~3,000 (main text) | 6 display items |
| Nature | Letter | ~1,500 | 4 display items |
| Science | Research Article | ~4,500 | 6–8 display items |
| Science | Report | ~2,500 | 4 display items |
| Cell | Article | ~6,000–8,000 | 7–8 main figures |
| Nature Medicine | Article | ~3,000–5,000 | 6 display items |
| Nature Medicine | Brief Communication | ~1,500 | 3 display items |
| Lancet Oncology | Article | ~3,000 | 5 total |
| Cancer Cell | Article | ~6,000–8,000 | 7 main figures |
| Journal of Clinical Oncology | Original Report | ~4,000 | 5 total |
| JAMA Oncology | Original Investigation | ~2,800 | 5 total |
| Circulation | Original Research | ~4,000 | 6 total |
| European Heart Journal | Original Article | ~4,000 | 6 total |
| JACC | Original Investigation | ~5,000 | 7 total |
| JAMA Cardiology | Original Investigation | ~2,800 | 5 total |
| Nature Neuroscience | Article | ~3,500 | 8 display items |
| Neuron | Article | ~6,000–8,000 | 7–8 main figures |
| Lancet Neurology | Article | ~3,000 | 5 total |
| Brain | Original Article | ~4,000 | 6 total |
| Molecular Psychiatry | Original Article | ~4,000 | 6 total |
| Immunity | Article | ~6,000–8,000 | 7 main figures |
| Nature Immunology | Article | ~3,500 | 8 display items |
| Nature Genetics | Article | ~3,000 | 6 display items |
| Nature Methods | Article | ~3,000 | 6 display items |
| Genome Biology | Research Article | No strict limit | No strict limit |
| Nucleic Acids Research | Full Paper | ~7,000 | 10 total |
| Journal of Clinical Investigation | Research Article | ~6,000 | 8 total |
| PNAS | Research Article | ~6,000 | 6 total (more with justification) |
| Nature Communications | Article | ~4,500 | 10 display items |
| Science Advances | Research Article | ~7,000 | 7–8 display items |
| eLife | Research Article | No strict limit | No strict limit |
| PLOS ONE | Research Article | No strict limit | No strict limit |
| Scientific Reports | Article | No strict limit | No strict limit |
| Cell Metabolism | Article | ~5,000–7,000 | 7 main figures |
| Cell Host & Microbe | Article | ~5,000–7,000 | 7 main figures |
| Molecular Cell | Article | ~5,000–7,000 | 7 main figures |
| GUT | Original Article | ~3,500 | 6 total |
| Gastroenterology | Full Research Article | ~5,000 | 6 total |
| Blood | Regular Article | ~5,000 | 7 total |
| BMC Medicine | Research Article | No strict limit | No strict limit |
| PLOS Medicine | Research Article | ~3,000 | 5 total |
| Science Translational Medicine | Research Article | ~4,500 | 8 display items |
| The EMBO Journal | Research Paper | ~7,000 | 7 main figures |
| Nature Biotechnology | Article | ~3,000 | 6 display items |
| Frontiers in Immunology | Original Research | ~12,000 | 15 total |
| Hepatology | Original Article | ~4,500 | 6 total |
| Lancet Infectious Diseases | Article | ~3,000 | 5 total |
| BMJ Open | Research Article | No strict limit | No strict limit |
| Cell Reports | Report | ~6,500 | 7 total |
| Cell Stem Cell | Article | ~5,000–7,000 | 7 main figures |
| Developmental Cell | Article | ~5,000–7,000 | 7 main figures |
| Current Biology | Article | ~4,500 | 6 main figures |
| Circulation Research | Original Research | ~5,000 | 6 total |
| Journal of Neuroscience | Research Article | ~10,000 | 10 total |
| Nature Structural & Molecular Biology | Article | ~3,000 | 6 display items |
| Nature Chemical Biology | Article | ~3,000 | 6 display items |
Patterns Worth Knowing
The 3,000-word club
The most prestigious clinical journals (NEJM, Lancet, JAMA, BMJ) are also some of the most restrictive on word count. Their 3,000-word limit covers the body text only; methods, abstract, references, and figure legends sit on top. The practical ceiling for a submission-ready manuscript to these journals is closer to 7,000–8,000 words total.
Cell Press vs. Nature: different philosophies
Cell Press journals (Cell, Neuron, Immunity, Cancer Cell) allow 6,000–8,000 word articles with extensive supplementary data: they expect full mechanistic stories. Nature family journals (Nature, Nature Medicine, Nature Genetics) cap main text at around 3,000 words but allow extensive supplements. Same prestige tier, opposite length philosophy.
Reference limits matter most at clinical journals
JAMA's 35-reference limit is strict and enforced. NEJM allows 70. Many basic science journals (PNAS, Genome Biology, eLife) have no limit. If you're coming from a basic science background and submitting to a clinical journal for the first time, the reference cap is the adjustment that catches most authors off guard.
Open-access journals are generally more flexible
PLOS ONE, eLife, Scientific Reports, BMJ Open, and BMC Medicine don't impose strict word or figure limits. This isn't lower standards. It's a different philosophy. The page cost concern that drove strict limits at traditional print journals simply doesn't apply when publication is digital and costs are covered by APCs.
References
- International Committee of Medical Journal Editors (ICMJE). Recommendations for the Conduct, Reporting, Editing, and Publication of Scholarly Work in Medical Journals. Updated 2023. [icmje.org ↗]
- Committee on Publication Ethics (COPE). (2017). Core Practices for journal publishers and editors. Retrieved February 2026. [publicationethics.org ↗]
- Springer Nature. Author submission guidelines. Retrieved February 2026. [springernature.com/authors ↗]
- PLOS ONE. Guidelines for authors. Retrieved February 2026. [journals.plos.org ↗]
- Cell Press. Author guidelines: general policies. Elsevier. Retrieved February 2026. [cell.com/author-guidelines ↗]
Suggested Citation
APA
Manusights. (2026). Biomedical journal submission specifications: Word limits, figure limits, and reference caps. Retrieved from https://manusights.com/resources/journal-submission-specs
MLA
Manusights. "Biomedical Journal Submission Specifications: Word Limits, Figure Limits, and Reference Caps." Manusights, 2026, manusights.com/resources/journal-submission-specs.
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Frequently Asked Questions
What word count limits apply to original research articles at top journals?
Word count limits vary considerably. Nature limits original research articles to 3,000 words of main text. Science allows 4,500 words. Cell allows 6,000-8,000 words depending on article type. NEJM original articles are capped at 3,400 words. JAMA research articles allow 3,000 words. Nature Communications and Scientific Reports are more permissive at 5,000-8,000 words. Always check the current author instructions for your specific article type - Brief Communications, Letters, and Short Reports have tighter limits than full Research Articles.
How many figures and tables are typically allowed?
Most top journals limit main-text figures to 5-6 for Letters or Brief Communications and 6-8 for full Research Articles. Nature allows 5 figures or tables in the main text; additional data can go in Extended Data (up to 10 items). Cell allows 7 figures. NEJM typically allows 4-5 tables or figures in the main text. Additional figures and tables belong in Supplementary Information. Reviewers and editors pay close attention to whether main-text figures are all essential - unnecessary figures are a common revision target.
What file formats do journals accept for manuscript and figure submission?
Most journals accept manuscripts in Microsoft Word (.docx) or LaTeX format via submission systems like Editorial Manager or ScholarOne. For figures, high-resolution TIFF (300-600 DPI for photographs, 600-1200 DPI for line art) is the most widely accepted format. PDF and EPS are also commonly accepted. Avoid low-resolution figures - they are a common cause of revision requests. For revision submissions, many journals also accept a tracked-changes Word document alongside the clean version.
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