To explore the risk factors for hematoma formation after laparoscopic inguinal hernia repair (LIHR) and its preventive measures.

This study is a retrospective case-control study. The clinical data of 275 patients who received LIHR and were admitted to Tangdu Hospital, Air Force Medical University from January to December 2025, they were divided into the hematoma group (n=32) and the non-hematoma group (n=243) based on whether a hematoma formed after the operation. The clinical data of both groups were collected and a multivariate logistic regression analysis was performed to analyze the risk factors for hematoma formation after LIHR surgery, and corresponding preventive measures were proposed based on the identified risk factors.

There were statistically significant differences in age, body mass index, location of the hernia, diaphragm diameter, surgical type, and mesh type between the two groups (P<0.05). Multivariate Logistic regression analysis showed that age≥65 years (OR 4.735, 95% CI 1.510-14.845), body mass index≥24 kg/m² (OR 3.445, 95% CI 1.363-8.707), bilateral hernia (OR 4.375, 95% CI 1.887-10.144), diaphragm diameter≥4 cm (OR 5.436, 95% CI 1.422-20.773), surgical type (total extraperitoneal hernia repair) (OR 3.105, 95% CI 1.158-8.322), and conventional mesh type (OR 4.088, 95% CI 1.266-13.198) were all independent risk factors for hematoma formation after LIHR (P<0.05).

The hematoma formation following LIHR are closely associated with age, body mass index, hernia location, diaphragm diameter, surgical type, and mesh type. The incidence of hematoma can be actively reduced through measures such as appropriate weight loss training, strict adherence to surgical operating standards, meticulous dissection using ultrasonic scalpel, preferential use of lightweight mesh, and compression care.