Abstract: Objective To explore the predictive value of Caprini scoring system combined with D-dimer （D-D） detection for deep vein thrombosis after inguinal hernia surgery. Methods This study was conducted from January 2022 to September 2025, with a sample of 290 patients who underwent inguinal hernia surgery. The patients were divided into a study group of 90 cases （patients with deep vein thrombosis） and a control group of 200 cases （patients without deep vein thrombosis） based on whether they developed deep vein thrombosis after surgery. The Caprini scores and D-D levels of the two groups were compared, and the receiver operating characteristic （ROC） curve was drawn to analyze the predictive value of the Caprini scoring system combined with D-D for patients with deep vein thrombosis after inguinal hernia surgery. Results There was no statistically significant difference in sex, age, height, body mass index （BMI）, respiratory rate, heart rate, surgical duration, hernia sac size, anesthesia method, degree of hernia ring adhesion, and hernia type （P>0.05）. The Caprini score and D-D level in the study group were significantly higher than those in the control group （P<0.05）. The efficiency of Caprini scoring system combined with D-D in predicting patients with deep vein thrombosis after inguinal hernia surgery were significantly higher than those of single detection of the two indicators （P<0.05）. Conclusion The Caprini score and D-D levels are higher in patients with deep vein thrombosis after inguinal hernia surgery. The combined detection of the two is helpful for the diagnosis of deep vein thrombosis after inguinal hernia surgery.

Key words: Caprini scoring system, D-dimer, Inguinal hernia, Deep vein thrombosis, Predictive value