The most likely cause of testicular discomfort, but no pain to touch, is varicocele. Patients with this condition may have a feeling of swelling in the perineum and a distended, vague scrotum. It is recommended that the patient have an ultrasound examination of the scrotum to observe the degree of varicose veins. If the degree of varicocele is mild, it is recommended that the patient wear tight underwear or scrotal brace or take oral medication to improve venous reflux and improve the symptoms of scrotal discomfort. In this case, it is recommended that the patient should not run for a long time, do not stand too much, and rest in bed more often, and the symptoms may improve.