Introduction: Pressure sores are the result of the compression of soft tissues in the prominent bones areas, mainly in patients without movement. If the depth of the ulcer compromises the sacral bone, the treatment will be the gluteus maximus myocutaneous flap in V-Y. Materials and Method: In the plastic surgery service of the hospital del Salvador 82 patients with sacral pressure sores grade 4 were operated on between 2011 and 2020 with gluteus maximus myocutaneous V-Y flap. The last 37 patients were analyzed. Results: With this treatment the flaps were doing well in all cases with good blood supply. Complications: dehiscence: 2 patients, cellulitis: 2 patients, hematoma: 2 patients and seroma: 1 patient. The overall complication was 16%. Follow up between three and six months. Discussion: The most important part in pressure sores is their prevention. When the ulcer is in prominent parts of the body, the sore, could be in different grades of depth. The classification of them is in grades 1: erythema, 2: subcutaneous tissue. These two grades are solved with conservative treatment. When the ulcers are in grade 3 or 4, and with little ulcer in the skin but with damage of the deep plane, the treatment will be with surgery. In our casuistic the most frequent pressure sore is in the sacrum treated with gluteus maximus sliding myocutaneous flap in V-Y. With this treatment the flaps were doing well in all cases with good blood supply. The complications of 16% were considered low. Conclusion: The sliding gluteus Maximus myocutaneous flap in V-Y for treatment for sacral pressures sores have been successful for our patients.