Ethical issues in research publication and reproducibility are important because research contributes to the development of knowledge only when its findings are reported honestly, transparently, and in a manner that allows other researchers to examine and verify them. Ethical research publication requires researchers to maintain integrity at every stage, from data collection and analysis to writing, authorship, peer review, and dissemination. One major ethical issue is fabrication and falsification of data. Fabrication means creating data or results that were never actually obtained, while falsification involves manipulating research data, methods, images, or results. Such practices mislead readers and can produce false scientific knowledge. Researchers must present their findings accurately, even when the results do not support their original hypothesis. Plagiarism is another serious ethical