Stem cells are unique, unspecialized cells; they can replicate through cell division, they have the ability to produce new differentiated cell types. The man's body contains three main sources of stem cells, embryonic, adult, and umbilical cells. There are diverse types of stem cells that depend on their originality or Potency. Mesenchymal stem cells showed progress in the diabetes field, it can stop daily insulin injections. Also, stem cells can manage liver cancer. furthermore, mend cardiac function in heart failure patients after myocardial infarction and ischemic heart disease.