Repeating LiST for Refractory Non-bacterial Prostatitis/Pelvic Pain Syndrome

Inclusion Criteria: 1. Participant must be between 18-60 years of age. 2. Participant has signed and dated the appropriate Informed Consent document. 3. Participant has had a clinical diagnosis of CP/CPPS defined as symptoms of discomfort or pain in the perineal or pelvic region for at least a three (3) month period within the last six (6) months. 4. Participant has received 6 sessions (1/week or 2/week, energy level 7, Dornier ARIES 2) of LIST the last 12 months for the treatment of CP/CPPS reporting amelioration but without complete remission of CP/CPPS symptoms ( at over 1 UPOINT positive domain). Exclusion Criteria: 1. Participant has evidence of facultative Gram negative or enterococcus with a value of ≥ 1000 CFU/ml in mid-stream urine (VB2). 2. Participant has a history of prostate, bladder or urethral cancer. 3. Participant has undergone pelvic radiation or systemic chemotherapy. 4. Participant has undergone intravesical chemotherapy. 5. Participant has unilateral orchialgia without pelvic symptoms, active urethral stricture or bladder stones, or any other urological condition associated with LUTS, any neurological disease or disorder affecting the bladder. 6. Participant has undergone prostate surgery or treatment. 7. Participant with penile or urinary sphincter implants. 8. Participant has been diagnosed with cancer during the last 5 years, or had any surgery in the pelvis. 9. Participant has a neurological impairment or psychiatric disorder preventing his understanding of consent and his ability to comply with the protocol.