Background: tension-free suburethral bands represent the "gold standard" for the surgical treatment of stress urinary incontinence (SUI). Specifically, the transobturator approach is the most widely used because of its high cure rates in the medium term, and its good safety profile. These data support the use of suburethral bands and, since the beginning of this century, they have displaced retropubic colposuspension. Objective: Study the long-term efficacy and safety (9 years) of transobturator suburethral band surgery (TOT) in the treatment of SUI. Material and methods: An observational descriptive study with N=133 patients operated with TOT between 2012 and 2021 at the Valladolid University Clinical Hospital (Spain), who had completed at least one year of postoperative follow-up. Variables analyzed: total continence and objective healing rates, subjective healing rate and postoperative complications. Statistics: Statistics: Student t-test or U-Mann-Whitney for quantitative variables, Chi-Square for categorical variables. Results: total continence rate from 1 to 9 years: 70.7%, 63.4%, 63.9%, 55.4%, 54.2%, 51.2%, 52.4%, 33.3%, and 100%. Objective cure rate from 1 to 9 years: 92.1%, 91.5%, 89.7%, 80%, 85.4%, 75.6%, 71.4%, 66.7%, and 100%. Subjective cure rate according to the median score on the ICIQ-IU-SF questionnaire from 1 to 9 years: 0, 1.5, 2, 4, 4, 6, 8, 12, and 0. Immediate complications were reported in 12.8% of cases, intermediate in 5.3%, and late in 30.1%. Of note was the occurrence of “de novo” urge urinary incontinence (UUI) in 8.3% and recurrence of SUI in 12%. Conclusions: TOT surgery is one of the main therapeutic tools in the surgical treatment of SUI, with high efficacy and a good safety profile. However, more long-term studies are needed to consolidate the results obtained with this technique.