Our goal was to look into the diseases in the hernia sac, the prevalence of cancer, and to determine whether it was necessary to continue using the current methods for histologically examining the hernia sac. Methods: The study comprised patients who underwent hernia surgery at our clinic between October 2021 and October 2022. According to the type of hernia, we separated the patients into four groups. We looked at the patients' demographics, the diseases within the hernia sac, the results of the histological investigation of the hernia sac, and the clinical characteristics of malignancy in patients who already had cancer. Results: In our hospital, 107 patients had inguinal, incisional, umbilical, or femoral hernias that needed to be repaired. In the hernia sac, there was cancer in three patients (2.8%). Three hernia sacs had tumors: one in the umbilical (3.12%), one in the inguinal (1.79%), and one in the incisional (5.88%). The majority of the additional diseases discovered in the hernia sac were omentum, lipomas, and herniated bowel segments. Conclusion: Hernia sacs could be the first sign of an underlying cancer; therefore, if aberrant pathology findings are found following surgery, a histological study should be done to rule out malignancy. A hidden malignancy is to be found through a histology examination.