Recent studies of tendon repair are reviewed in order to help hand therapists make the most effective decisions regarding treatment of tendon injuries. Flexor tendons are emphasized by inclusion of the most current discussions and research on the different phases of intrinsic and extrinsic healing, the zones of injury, mechanical and chemical influences on tendon healing, the techniques of tendon suturing, and the timing of repair and rehabilitation. The purpose of the article is to update hand therapists on the latest research efforts concerning tendon healing in order to achieve better functional outcomes following repair of these structures.