Hello dear I understand your concern Appendix removal surgery does not cause epididymitis It is most commonly die to bacterial infections. Do not worry it is not deadly disease. It is treatable. I would suggests to consul the urologist and undergo Urine and urethral swab microscopy and culture, Other cause like cyst, varicocele should be rule out by the physical examination and USG scan of the pelvis. Doctor will give following advises: Take antibiotic like augmentin Tablet diclofenac and serratiopeptidase Avoid heavy weight lifting, Wear supporting device that support the scrotum, Wear loose under garments, take Warm bath. Take above treatment for 3 week for complete clearance of the infections Hope this may help you Contact HCM for further health query Best regards Dr. Sagar