When the testicles show signs of swelling, it is important to first clarify what causes it before choosing medication. If it is a varicocele, mild varicocele can be treated with oral Mai Zhi Ling, while surgery can be chosen for moderate to severe cases. If it is viral orchitis, usually secondary to mumps, antiviral medication, intravenous ganciclovir injection, needs to be chosen. If the swelling is accompanied by pain and is more pronounced, you can also take oral diclofenac sodium capsules to relieve it. If the swelling is caused by bacterial orchitis or epididymitis, it is related to urinary tract infection and bacteria entering the vas deferens and reaching the testicles and epididymis. The testicular swelling caused by testicular torsion should also be considered as a urological emergency. After the diagnosis is confirmed by ultrasound examination, surgery should be considered.