Objective: To determine the risk factors with the infection in the residual cavity after hepatic cystectomy in the patients of the Ramiro Prialé Prialé hospital - EsSalud -Huancayo. Materials and Methods: A retrospective cohort was conducted, between January 2014 and January 2018. A data collection sheet was used. Crude and adjusted relative risks (RR) were obtained, with 95% confidence intervals. Results: 83 patients participated. 41.2% of women infected in the post-cystectomy cavity and the median age of infected patients was 33 years. The pathological antecedents that were related to the infection were obesity or overweight (62.5%), previous neoplasia (100%) and previous immune disease (31%). Post-cystectomy residual cavity infection was affected by the presence of obesity or overweight (aRR: 1.56; 95% CI: 1.15-2.13; p value = 0.005), diabetes mellitus (aRR: 2.67; 95% CI : 2.09-3.41...