Human cellular tissue therapy in the USA involves the use of biologically derived tissues to support the repair, reconstruction, or replacement of damaged or diseased cells and tissues. This therapeutic approach is commonly applied in regenerative medicine and may include sources such as placental tissue, umbilical cord, or other human-derived materials. Human cellular tissue therapy aims to assist in the body's natural healing processes, particularly in areas like orthopedics, wound care, and pain management. In the United States, such therapies are subject to regulation to ensure safety and ethical sourcing. Clinical practices may vary depending on the application and treatment goals.