Hi and welcome to Healthcaremagic. Thank you for your query. I am Dr. Rommstein, I understand your concerns and I will try to help you as much as I can. This type of pain and location is suggestive of epididimitis which is inflammation of part of testicle and this not uncommon in males especially in young age. This is usually treated with 10 days of antibiotics, usually ciprofloxacin and there are no permanent consequances. MAsturbation and intercourse should be avoided till pain persist, if possible since I may prolong inflammation course. Some more serious conditions such as tumors or torsion are rare but in doubtful cases you should do Doppler ultrasound or scintigraphy. In this particular case, I don’t think this is required and this should improve on antibiotic therapy. I hope I have answered you query. If you have any further questions you can contact us in every time. Kindly regards. Wish you a good health.