The main contents of medical paper writing are as follows: 1. Research purposes: To clarify the purpose and importance of the research, explain the research problems and put forward hypotheses. 2. Literature review: Review the research progress and existing literature in related fields, and point out the innovation of the research. 3. Methods: Describe the design, sample selection, data collection and analysis methods of the study to ensure the repeatability of the study. 4. Results: Introduce the experimental results or data analysis results in detail, and support the conclusion with charts, tables and statistical analysis. 5. Discussion and conclusion: Explain and analyze the results, compare with previous studies, and put forward answers or new opinions on the research questions. 6. Citation and references: Ensure that the references of the existing research are accurate and list the references in the prescribed format. The requirements for medical papers include: 1. Accuracy and reliability: the data and results should be accurate and reliable, and the research methods should be scientifically verified. 2. Logic and coherence: the structure of the paper is clear, the content is logical and coherent, and there must be clear links between all parts. 3. Writing and language: Use accurate and concise language to avoid terminology confusion and grammatical errors. 4. Formal norms: Write papers according to the norms of journals or academic institutions, including formats, quotations and references. 5. Innovation and value: Research should be innovative, promote the academic field and provide valuable solutions to practical medical problems.