Hello and Welcome to ‘Ask A Doctor’ service. I have reviewed your query and here is my advice. 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. Hope I have answered your query. Let me know if I can assist you further.