Possible causes of testicular swelling: First, testicular inflammation or epididymitis can appear as painful testicular swelling. When touched, the testicles are found to increase in size and the scrotal skin is red and swollen, accompanied by pain. The pain is relieved when the testicles are gently lifted, and it is aggravated when walking or moving, and even the lump inside the scrotal cavity can be touched. Consider testicular infection or epididymitis, suggest anti-infection treatment, can choose cephalosporins oral or intravenous infusion treatment. The commonly used cefixime capsule should be taken orally twice a day for three consecutive days to observe the improvement of symptoms. Do not drink alcohol, rest properly and avoid excessive activities during the medication period. If the symptoms do not improve in three days, it is recommended to consult a doctor for adjustment treatment; secondly, varicocele can also be felt as testicular swelling, and when touched by hand, the testicle form is mostly normal, but the mass-like vascular tissue can be touched in the upper part of the testicle, which is soft to touch and without obvious pain. However, the swelling sensation is obvious when walking and less when lying down to rest. It is recommended to perform ultrasound examination of the spermatic cord. If the varicocele is diagnosed, oral medication such as Mizarin can be taken or high level ligation of the internal spermatic cord can be chosen to improve the symptoms.