How to Design an Effective Medical Research Poster

An effective poster guides the eye: it uses hierarchy, space and contrast so that a viewer can grasp the title, the main result and the conclusion in under a minute, and can then read the details if interested.

Principles

1. Hierarchy: the title is largest, followed by section headings, the key result and body text. The main result should be the most visually prominent content after the title.
2. Grid and alignment: use columns, consistent margins and alignment so the reading order is obvious (left to right, top to bottom).
3. White space: leave breathing room; do not fill every gap.
4. Contrast and colour: dark text on a light background (or the reverse) with a limited palette. Avoid colour combinations that people with colour-vision deficiency cannot distinguish.
5. Typography: one or two simple fonts; avoid all capitals for body text.
6. Figures: simplified charts with large labels, direct labelling instead of legends where possible, and error bars explained.
7. Images and logos: use only with permission, at a good resolution.
8. Accessibility: ensure legibility for people with low vision, and consider providing a digital version or QR code.

Test it

Look at the poster from two metres. Can you tell the question, the main result and the conclusion? Ask a colleague outside your field to summarise it. Print a draft at small scale to check balance.

Illustrative example

Invented for teaching. The first design uses seven colours, centred text and a rainbow bar chart. The redesign uses a two-colour palette, a left-aligned grid and a single forest-style plot with the key estimate highlighted, which makes the message easier to read.

Common pitfalls

• Decorative graphics that distract.
• Low-contrast text on photographs.
• Many small, unreadable tables.

Key takeaways

• Hierarchy, alignment, contrast and simple visuals.
• Test with someone unfamiliar with the work.

This page is general educational information about research methods. It is not medical, legal or regulatory advice; follow your institution's ethics board and your target journal's instructions.