Introduction: Platelet rich plasma has been used to enhance healing after surgical tendon repair. Aim 
of the work: Evaluation of the effect of platelets rich plasma on the healing of flexor tendons of the 
hand. Patients and methods: The present randomized controlled study included 20 patients in
hospital of Minia university during the period between December 2018 and December 2019 at age 5 -
50 years, Diagnosed as acute complete cut tendon. Results: Incidence of excellent healing was in 
PRP group. Discussion: Platelet rich plasma increase strength of repair with poor effect on 
complications of tendon repair. We recommend: More studies have to be done on individual growth 
factors of PRP to show effects of every factor on tendon healing.