Introduction/Background The importance of the affected margins after conization continues to be a source of controversy today, since there are studies that defend that these could be an important factor in the face of recurrence.

Methodology Cohort Study.The group of patients analyzed is made up of those patients undergoing conization with involvement of the margins of the surgical piece. The control group is made up of patients undergoing conization who have presented free surgical margins. Patients undergoing conization at the Juan Ramón Jiménez Hospital in the last year 2020 are included.

Results A total of 73 patients who underwent conization were studied, with a mean age of 38.8 years. The group of patients under study includes an N of 25 who presented affected surgical margins. The control group is made up of 48 patients who presented free margins. In patients who presented affected edges after conization, the recurrence rate in the first control at 4 months was 8% (N=2). In patients with free borders, the recurrence rate in the first control at 6 months was 8.3% (N=4). These differences did not reach statistically significant levels, although the similarity of recurrence percentages in both groups is striking.

Conclusion It has not been shown that the involvement of the conization margins is a risk factor for the appearance of recurrences during the first year of follow-up in patients with cervical dysplasia. Prospective multicenter studies are necessary to determine definitive conclusions that can modify our usual clinical practice.