Testicular pain

Testicular pain is discomfort felt in a testicle or the scrotum, ranging from a dull ache to sudden severe pain. The single most important thing to recognise is testicular torsion: the testicle twists on its cord, cutting off its blood supply, causing sudden, severe pain (often with nausea and vomiting, and sometimes waking a person from sleep), usually in adolescents and young men. It is a true surgical emergency because the testicle can be permanently damaged within hours if the blood flow is not restored — so any sudden, severe testicular pain must be assumed to be torsion until a doctor proves otherwise. Other, more treatable causes are common too: infection of the epididymis or testicle (epididymo-orchitis), which builds up over hours to days often with swelling, redness and urinary symptoms or fever; injury; a twisted small remnant (a less dangerous mimic of torsion); a varicocele or cyst (usually a dull ache or a lump); and referred pain from a kidney stone. Because the stakes with torsion are so high, sudden severe pain always means seeking emergency care immediately.

• Testicular torsion (a twisted testicle) — sudden, severe pain, often with nausea; a surgical emergency, mainly in adolescents and young men.
• Epididymo-orchitis — infection of the epididymis/testicle; pain building over hours to days with swelling, sometimes fever or urinary symptoms.
• Injury or trauma.
• A twisted testicular appendage — a less dangerous mimic of torsion, especially in boys.
• Varicocele or a cyst — usually a dull ache or a lump rather than acute pain.
• Referred pain — from a kidney stone or hernia.

Testicular pain is assessed clinically and, crucially, with an urgent ultrasound when torsion is possible, to check blood flow — but if torsion is strongly suspected, surgery should not be delayed waiting for tests. For a suspected infection (epididymo-orchitis), a urine test and, if a sexually transmitted infection is possible, specific tests are arranged; a white cell count and CRP may support a significant infection. Mediora.AI can flag a raised white-cell/CRP pattern that fits an infective cause, but the priority with sudden severe testicular pain is immediate assessment for torsion, not a blood test — the diagnosis is time-critical.