Stem cells are unique human cells that have the ability to grow rapidly, usually from a single cell, and differentiate into many cell and tissue types. It can differentiate into any sort of cell, which can then differentiate into daughter cells, which can then differentiate into hematopoietic stem cells. To avoid the creation of teratomas, hESCs are derived from traditional culture to laser-assisted methods or microsurgery, and their differentiation must be determined. Inner cell mass (ICM) and trophectoderm are the two cell types that make up blastocysts (TE). Pluripotent cells have the ability to proliferate and differentiate into any type of cell, and they can be a limitless source of cells. In stem cell therapy, iPSCs eliminate the requirement for embryos.The self-renewal property of ESC, Hwang et al. (Hwang, Varghese and Elisseeff, 2008) the optimum culture method for hESC-based cell and tissue treatment would be a defined culture free, according to the researchers. Certain diseases that are currently incurable, such as neurodegenerative diseases, may be able to be treated with stem cell therapy. We are better able to extend human life than at any other point in history thanks to stem cell therapy and all of its restorative effects. This review paper on stem cells and their control, together with insightful remarks on clinical application and future outcomes, gives stem cell renewal a lot of optimism.