This document discusses professional ethics in disability research. It defines ethics as principles that guide behavior to help or harm others. Historically, codes like the Nuremberg Code and Declaration of Helsinki established ethics for medical research involving human subjects. Adhering to ethics promotes research aims like truth, protects participants, and builds public trust. In disability research, ethics involve honesty, objectivity, respecting participants' autonomy and consent, and ensuring inclusion. Institutional review boards provide oversight and advice on ethical approval. Challenges include obtaining informed consent from participants with limited comprehension and making information accessible.