Symptoms of Epididymitis
Epididymitis refers to inflammation of the epididymis, which occurs when pathogenic bacteria—such as *Escherichia coli*, *Staphylococcus*, and *Streptococcus*—enter the vas deferens and ascend retrograde into the epididymis, typically during periods of diminished host immunity. It predominantly affects young and middle-aged men. Clinical presentations are generally categorized into acute and chronic epididymitis.
① Symptoms of Acute Epididymitis
In most cases, patients with acute epididymitis present with sudden high fever and elevated white blood cell count on routine blood tests. Affected-side scrotal swelling and pain occur, accompanied by epididymal enlargement, a sensation of heaviness or dragging, and marked tenderness. Referred pain may also be felt in the lower abdomen and inguinal region. When inflammation spreads extensively, both the epididymis and testis become swollen, with indistinct boundaries upon palpation—a condition termed epididymo-orchitis.
② Symptoms of Chronic Epididymitis
Scrotal pain is the hallmark symptom of chronic epididymitis, often manifesting as persistent or intermittent unilateral scrotal discomfort, usually described as dull or aching, with associated sensations of fullness or heaviness. Pain may radiate to the lower abdomen and ipsilateral inguinal region; some patients report pain in the groin or lower abdomen. Ipsilateral vas deferens thickening may also be observed. Notably, chronic epididymitis can lead to hydrocele, although this is not universally present and typically occurs secondarily.