Cell therapy is a type of medical treatment that involves the use of cells to treat or prevent various diseases. This can include using stem cells, which are primitive cells that have the ability to develop into many different cell types in the body, or other types of cells such as immune cells or blood cells. The goal of cell therapy is to introduce new cells into a patient's body to replace damaged or lost cells, or to stimulate the patient's own cells to regenerate and repair tissues. This can be used to treat a wide range of conditions, including autoimmune diseases, cancer, heart disease, and neurological disorders. Overall, cell therapy is an emerging field with great potential for improving human health.