Stem cell preservation is the process of collecting and storing stem cells for future medical use. These cells can be obtained from various sources, including umbilical cord blood, bone marrow, and adult tissues. They have the unique ability to develop into different types of cells, making them valuable for treating various diseases and injuries. The preservation process typically involves freezing the stem cells at very low temperatures, a method known as cryopreservation. This allows the cells to remain viable for many years, ensuring they can be used in potential therapies, such as regenerative medicine or tissue engineering, when needed.