Type of study: Case series. Universe of study: Records of patients with Fournier syndrome treated using the 3-stage reconstructive technique assigned and treated at the Mexican Social Security Institute: Regional General Hospital No. 1 of Mérida, Yucatán, during the years 2021-2024.

Population under study: Patients diagnosed with Fournier syndrome.

The first surgical stage consists of damage limitation and extension analysis. In the second surgical stage, it was necessary to wash and prepare the area to be remodeled with the joint creation of the testicular resting space delimited by the fascia of the adductor muscles of the proximal lower limb. Finally, in the third surgical stage, the wound is remodeled and addressed. The surgery was performed in patients with extensive involvement that could not be resolved with minor surgery.

The 3-stage reconstructive technique can be summarized as follows:

1. Analysis and limitation of the tissue injury. Bilateral testicular and spermatic cord dissection.
2. Formation of cutaneous flaps and bilateral inguinal neocavity.
3. Perineal-scrotal reconstruction with fascial facing and cutaneous flaps

Inclusion Criteria:

- patients diagnosed with perineal necrotizing fasciitis (Fournier syndrome), at the General Hospital Zone No. 1, aged between 40-85 years, who have undergone surgery

Exclusion Criteria:

• Those who could not be followed up due to incomplete records. Those who did not complete the three procedures due to mortality associated with primary pathologies independent of necrotizing fasciitis.

due to the reproducibility of the study