Abstract:[Objective] To investigate the related factors for the formation of deep vein thrombosis (DVT) after lower limb joint replacement following accelerated rehabilitation. [Methods] A total of 330 patients who underwent lower limb joint replacement following accelerated rehabilitation in our hospital from December 2021 to December 2022 were included in this study to observe whether postoperative DVT occurred. The univariate comparison and multifactor binary logistic regression analysis was used to explore the factors related to DVT formation. [Results] Among the 330 patients, 46 patients were diagnosed with lower extremity deep vein thrombosis after operation, with the overall incidence of 13.9%. The DVT group proved significantly greater than the non-DVT group in terms of age [(71.9±7.2) years vs (64.4±14.2) years, P<0.001], the proportion of females [male/female, (7/39) vs (84/200), P=0.046], the proportion of previous cerebral infarction [yes/no, (12/34) vs (32/252), P=0.006] and proportion of disease as OA [CD/ON/OA/RA/FX, (5/2/35/0/4) vs (42/50/157/10/25), P=0.048], preoperative CRP [(9.3±8.2) mg/L vs (3.5±3.2) mg/L, P<0.001], CRP a day postoperatively [(21.4±18.5) mg/L vs (14.7±12.8) mg/L, P=0.004]. However, the former had significantly less intraoperative blood loss than the latter [(322.2±225.4) ml vs (432.9±298.6) ml, P=0.005]. The DVT group had significantly higher ratio of UKA, TKA, and AFHR than the non-DVT group [UKA/TKA/AFHR/THA, (13/22/2/9) vs (67/82/10/ 125), P=0.013]. As results of multivariate logistic regression, the alcohol consumption history (OR=5.041, P=0.046), preoperative CRP (OR= 1.173, P=0.031), and age (OR=1.078, P<0.001) were the independent risk factor for DVT after lower limb joint replacement. [Conclusion] After lower limb joint replacement following accelerated rehabilitation, the incidence of other types of deep vein thrombosis of lower limb is low except for intermuscular vein thrombosis. Alcohol consumption history, preoperative CRP and age are independent risk factors for DVT after lower limb joint replacement.