A little swelling in one testicle may be a sign of mild testicular and epididymal inflammation, or it may be caused by varicocele or chronic prostatitis, which needs to be clearly diagnosed by further examination, including testicular and epididymal ultrasound, spermatic vein ultrasound, prostate ultrasound and routine examination of prostate fluid. If it is inflammation of the testicles and epididymis, choose levofloxacin tablets and cefuroxime tablets for 3-5 days of oral treatment and the symptoms will be relieved. If it is varicoceles, choose Diosmin tablets, abscessation tablets, and mai zhi ling tablets to take oral treatment for 2-4 weeks for the symptoms to be slowly relieved. If the symptoms are found to be caused by chronic prostatitis through examination, you can choose anti-inflammatory Chinese medicine, such as prostate Antong tablets, infirmity clearing tablets, Yuanhu pain relief granules for 1-2 months of symptomatic treatment, and the symptoms of a little swelling of the testicles can be relieved.