Arteritis caused by retroperitoneal fibrosis, at present, you can take prednisolone, tamoxifen, azathioprine and other drugs under the guidance of the physician anti-inflammatory, if necessary, surgical treatment and so on. 1. Drug therapy: such as glucocorticoids, immunosuppressants, anti-inflammatory and antifibrotic drugs. (1) Glucocorticosteroids: for example, prednisolone, etc., with anti-inflammatory and promote the maturation of fibrotic tissues; especially for active inflammation in the middle and early retroperitoneal fibrosis patients; pregnant women and breastfeeding women should try to avoid using. The use of glucocorticoids may lead to water, salt, sugar, protein, fat metabolism disorders, weakened immunity and other adverse reactions. (2) Immunosuppressants: such as methotrexate and azathioprine. By inhibiting excessive immune response and tissue damage, they can make hormones play a better therapeutic effect; after using them, they may lead to headache, insomnia, sensory retardation and other adverse reactions. (3) Anti-inflammatory and antifibrotic drugs: such as tamoxifen, which can inhibit lipoprotein oxidation; the use of the drug may lead to nausea and vomiting, loss of appetite and other gastrointestinal side effects. 2. Surgery: When patients have symptoms of ureteral obstruction, surgical treatment usually needs to be considered. Such as ureteral stricture resection plus end-to-end anastomosis, laparoscopic ureteral release. Patients with retroperitoneal fibrosis caused by arteritis should go to the general surgery department of the hospital in time and follow the doctor’s instructions for treatment, so as not to affect normal life.