The purpose of this project is to describe the impact of stem cells on society by describing their types, how they are isolated, and their medical benefits, while also investigating the ethical and legal issues surrounding their use. Chapter-1 and Chapter-2 describe different types of stem cells and their sources, and explain various applications of stem cells and how they can contribute to treating different diseases. Chapter-3 and Chapter-4 discuss ethical issues surrounding stem research, and the laws that govern their use. Based on the project research, the authors provide conclusions about the future directions of stem cell research