Abstract:Abstract:Objective: To explore the analgesic effect of hydromorphone hydrochloride injection subcutaneous analgesic pump in the treatment of moderate and severe bone cancer pain, and its effect on the density of serum TNF-α and IL-6. Methods: A retrospective study was used to select 57 cases of bone cancer pain treated with hydromorphone hydrochloride injection subcutaneous analgesic pump from January 2020 to March 2021, including 26 cases in the moderate bone cancer pain group and 31 cases in the severe bone cancer pain group, collect general information,compare the analgesic effect and serum TNF-α and IL-6 density of the two groups before and after treatment. Results: The pain of the two groups was significantly relieved after treatment with hydromorphone hydrochloride injection subcutaneous analgesic pump (P<0.05), and the expression levels of TNF-α and IL-6 were lower than before treatment (P<0.05). Conclusion: The hydromorphone hydrochloride injection subcutaneous analgesic pump is effective in treating moderate and severe bone cancer pain, and the serum TNF-α and IL-6 density of the two groups of patients decreased after treatment.