What Causes Testicular Pain?
Among males, a common symptom is testicular pain. Causes of testicular pain include testicular torsion, scrotal edema, and varicocele.
① Testicular Torsion
Testicular torsion occurs when the testicle rotates abnormally due to external force, potentially causing severe pain. It most commonly affects children. Patients typically experience sudden, intense unilateral testicular pain, accompanied by redness, swelling, and tenderness. Severe cases may also involve nausea and vomiting. Surgical intervention is usually required.

② Scrotal Edema
Accumulation of fluid around the testicle and surrounding tissues—when fluid volume becomes imbalanced—can lead to scrotal edema, resulting in testicular pain. If such symptoms are observed, prompt medical evaluation is essential to determine the underlying cause; surgical treatment may be necessary.
③ Varicocele
Varicocele—dilation and tortuosity of the pampiniform plexus veins within the spermatic cord—may cause testicular pain, along with scrotal swelling and localized discomfort. Symptoms often worsen after prolonged sitting.