Stem cells biology has become apparent as a major area of biomedical research with eventual implementations in developmental biology, disease modeling, drug development, tissue engineering, toxicity testing and further extra different applications. Implementation of stem cells in regenerative medicine augurs well for improving human health by resorting the cells function and tissues damaged due to injury or degeneration. stem cell biology has emerged as an important area of biomedical research with potential applications in developmental biology, disease modeling, tissue engineering, drug development, toxicity testing and others.Use of stem cells in regenerative medicine holds promise for improving human health by restoring the function of cells and tissues damaged due to degeneration and/or injury.