What is chemical cystitis after bladder instillation?

Chemical cystitis after bladder instillation is an inflammatory reaction caused by bladder instillation of chemotherapy drugs.

In the treatment of bladder cancer, bladder instillation chemotherapy drugs are widely used to prevent tumor recurrence and metastasis, but certain side effects may occur during treatment, such as chemical cystitis. The pathogenesis of chemical cystitis may be related to the direct stimulation and toxic effects of chemotherapy drugs on bladder mucosa. The main symptoms include frequent urination, urgency, dysuria, hematuria, etc. These symptoms usually appear within a few days of chemotherapy infusion and can last for weeks to months.