Stem cell controversy
The stem cell controversy is the ethical debate primarily concerning the creation, treatment, and destruction of human embryos incident to research involving embryonic stem cells. Not all stem cell
Stem cell
This article is about the cell type. For the medical therapy, see Stem Cell TreatmentsStem cells are biological cells found in all multicellular organisms, that can divide and differentiate into diverse specialized cell types and can self-renew to produce more stem cells...

 research involves the creation, use, or destruction of human embryos. For example, adult stem cells, amniotic stem cells
Amniotic stem cells
Amniotic stem cells are multipotent stem cells of mesenchymal origin extracted from amniotic fluid.Amniotic stem cells are able to differentiate into various tissue type such as skin, cartilage, cardiac tissue, nerves, muscle, and bone, and may have potential future medical applications.All over...

 and induced pluripotent stem cells do not involve human embryos at all.
Since stem cells have the ability to differentiate into any type of cell, they offer something in the development of medical treatments for a wide range of conditions.