Cell therapy involves the use of living cells to treat, repair, or regenerate damaged tissues or organs in the body. This approach has shown promise in various medical fields, including regenerative medicine, immunotherapy, and cancer treatment. Cell therapy can involve the transplantation of healthy cells from a donor, the manipulation and expansion of a patient's own cells in a laboratory setting, or the direct administration of cell-based products. This field is constantly evolving and holds great potential for addressing a wide range of medical conditions and improving patient outcomes.