A stem cell bank is a place where the storage of stem cells, extracted and processed in laboratories. They may be used for the treatment of disease in the future when needed. Amniotic stem cells are derived from amniotic fluid and stored in an amniotic cell bank for future use. The cord blood stem cells are extracted from the umbilical cord during childbirth and stored in cord blood banks. The umbilical cord and umbilical blood are the main sources of stem cells, whereas, the placenta, amniotic sac, and amniotic fluid are also rich sources of quality stem cells.