Stem cells are an exciting new tool available for the treatment of arthritis, fractures, and other soft tissue and orthopedic injuries. Stem cells are “primitive” cells that can mature into many other types of cells throughout the body. The stem cells we use in veterinary medicine are obtained from fat samples. We collect them from the pet they are going to be used in so there is no risk of tissue rejection, as is the case with embryonic stem cells or organ transplants. Once we implant the stem cells, they find and replace injured cells, reduce inflammation, and decrease scaring. Extra stem cells can be stored if the pet needs them again in the future.