Stem cell therapy is a medical treatment that uses stem cells to repair, replace, or regenerate damaged or diseased tissues in the body. These stem cells can develop into various types of specialized cells, such as muscle, nerve, or blood cells, and help restore the normal function of affected tissues. Stem cell therapy is being explored for treating a wide range of conditions, including injuries, degenerative diseases, and certain types of cancers. While promising, it is still considered experimental in many areas and is not yet approved as a standard treatment by regulatory bodies like the FDA.