Reconstructive microsurgery is a specialized area of ​​plastic surgery that uses the tissues of the same individual to reconstruct others that have been lost in a different anatomical location. The viability or survival of these tissues is guaranteed by performing vascular, arterial and venous or nervous anastomoses, which ensure arterial blood flow and venous return in these tissues. These complex procedures require the use of a surgical microscope, instruments and special sutures, with a particular surgical training. Microsurgical procedures are performed in patients whose reconstruction options have been exhausted, or in those in which these techniques represent the best option compared to conventional procedures. Once the flap has been taken with its respective vascular pedicle, the recipient vessels are located and the flap is moved to that area