An autograft is a graft taken from one part of a person and transplanted elsewhere in the same person.
The benefit of using the body's own tissue for repair of damaged structures is that there is no rejection, and little risk of infection, and the time between 'harvest' and implant is minimised.
Autograft or allograft for reconstruction of anterior cruciate ligament: a health economics perspective. Mistry H, Metcalfe A, Colquitt J, Loveman E, Smith NA, Royle P and Waugh N. Knee Surg Sports Traumatol Arthrosc. 2019; 27(6): 1782–1790.