A high-resolution diagnostic assessment of the testes, epididymis, and scrotal structures. The gold-standard investigation for testicular lumps, pain, swelling, or suspected torsion. Performed by a male consultant sonographer at our Marylebone clinic.
Not sure if this is the right scan? Call our clinical team for guidance.
A testicular ultrasound is a safe, non-invasive diagnostic procedure that produces high-resolution images of the testes, epididymis, and surrounding scrotal structures using sound waves — no radiation involved.
It is the most accurate imaging tool available for investigating testicular lumps, scrotal pain, swelling, or changes in size. Ultrasound can detect testicular cancer, epididymo-orchitis, varicoceles, hydroceles, and torsion with high sensitivity. Because testicular cancer is the most common cancer in men aged 15 to 45, early investigation of any lump or change is strongly recommended by BMUS and NICE guidelines.
At Sonoworld, all testicular scans are performed by a male consultant sonographer. You will receive an immediate verbal explanation of the findings during your appointment, followed by a comprehensive written report within 24 hours.
Both testes are measured and examined for size, echogenicity (tissue texture), and the presence of focal lesions, masses, or calcifications. Any solid mass within the testis is treated as suspicious for malignancy until proven otherwise and requires urgent follow-up.
The epididymis — the coiled tube that sits behind each testis — is assessed for enlargement, cysts (epididymal cysts), or signs of inflammation (epididymitis). Epididymitis is the most common cause of acute scrotal pain in adult men and is readily identified on ultrasound.
Colour Doppler imaging is used to assess blood flow within and around the testes. Absent or reduced blood flow is a key indicator of testicular torsion — a surgical emergency. Increased flow suggests infection or inflammation. Varicoceles (dilated veins) are also identified using Doppler.
A testicular ultrasound is highly effective at identifying and distinguishing between various scrotal and testicular conditions.
"We frequently see men in their 20s and 30s who have noticed a small, painless lump on one testicle but delayed seeking help due to anxiety or embarrassment. In many cases, a prompt ultrasound reveals a simple, benign epididymal cyst, providing immediate peace of mind. However, when the lump is solid and within the testicular tissue, early ultrasound detection is critical. Identifying these suspicious lesions quickly allows for rapid referral to a urologist, leading to highly successful treatment outcomes. The key is not to wait—if you feel a change, get it checked."
— Daniela Stan MSc, Lead Sonographer
Any new lump, persistent pain, or unexplained change in the scrotum should be investigated promptly. Testicular cancer has a 95% survival rate when caught early — ultrasound is the first-line investigation recommended by NICE.
No special preparation is required for a testicular ultrasound scan.
Our private testicular scan is all-inclusive — one fixed fee with no hidden costs and no GP referral required.
No hidden costs. No GP referral required.
Book Your Scan OnlineOur Well Man Scan combines a testicular scan with an abdominal assessment, kidneys, bladder, and prostate in a single appointment.
View Well Man Scan →No. You can self-refer and book directly online or by phone. No GP letter is required. If you do have a referral, please bring it with you as it helps the sonographer understand the clinical context.
Yes. All testicular ultrasound scans at Sonoworld are performed by a male consultant sonographer. We understand this is a sensitive examination and we take every step to ensure your comfort and dignity throughout.
No. A testicular ultrasound is completely painless. Warm gel is applied to the skin and a small transducer is moved gently over the scrotum. There is no radiation, no needles, and no discomfort. If you have significant pain or tenderness, please let the sonographer know and they will adjust the technique accordingly.
Testicular ultrasound is the primary imaging investigation for suspected testicular cancer and has a sensitivity of over 95% for detecting intratesticular masses. Any solid lesion identified within the testis is treated as suspicious for malignancy and the report will advise urgent urological referral. Ultrasound cannot confirm cancer on its own — a definitive diagnosis requires surgical exploration and histology — but it is the essential first step.
An epididymal cyst is a benign, fluid-filled sac that develops in the epididymis (the coiled tube behind the testis). It is extremely common and not dangerous. A testicular lump, by contrast, arises within the testis itself and must always be investigated urgently. Ultrasound can reliably distinguish between the two in a single appointment, providing immediate reassurance or prompting the appropriate next steps.
Your consultant sonographer will explain the findings to you during the appointment, so you will leave with a clear understanding of the results. A comprehensive written report and digital images will be sent to you within 24 hours, ready to share with your GP or specialist.
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