Background: Urolithiasis  has  an  important  role  in  the  structure  of  the  urological pathology,  due  to  its  high  incidence,  frequency  of  recurrence  and  complications.
The aim of the work: To evaluate the efficacy of shock wave lithotripsy [SWL] as a therapeutic for renal stones, using recent Richard Wolf, PiezoLith 3000Plus device at Al-Azher university hospital Assiut branch.
Patients and Methods: A prospective study included 50 patients was conducted between September 2022 and April 2023. They were selected from Al-Azher University Hospital, Assiut branch. The procedure was considered to be successful in patients with no stone fragments or with any stone fragments smaller than 4 mm in size at 2 and 6 weeks after the first, second or third session
Results: The overall success rate is 84%, with 16% of cases failing. The PiezoLith 3000Plus device, developed by Richard Wolf, is highly effective in treating renal stones. Considerable variance existed among SF status, stone size, stone density, BMI, and SSD. There was no significant relation between SF status stone laterality, height of the patient or degree of HN.
Conclusion:  The success of SWL in renal stones may be recognized through identifying elements like patient BMI, SSD, & calculus density. The PiezoLith 3000Plus device, developed by Richard Wolf, is highly effective in treating renal stones.