The testicles themselves
Size, tissue pattern and symmetry of each testis. Any lump is measured and characterised — the key distinction is whether it is fluid-filled (usually harmless) or solid (needs specialist assessment).
A private testicular ultrasound — also called a scrotal ultrasound — is a painless, radiation-free scan of the testes, epididymis and scrotal structures. It is the first-line test for lumps, swelling and testicular pain. £235 all-inclusive at 29 Weymouth Street, Marylebone W1G, with instant verbal results and a written report within 24 hours.
The most common booking we take for this scan is a man who found a lump in the shower and wants an answer today — and in our casebook, most of those lumps turn out to be harmless.
Sudden severe pain in a testicle, testicle pain with feeling or being sick or pain in your tummy, or testicle pain that lasts more than an hour or continues at rest can be signs of testicular torsion — a twisted spermatic cord cutting off the blood supply. Torsion is most common in boys and young men and is a surgical emergency: go to A&E or call 999 now. An outpatient scan appointment is not the right route for these symptoms.
Overview
A testicular ultrasound scan is a safe, non-invasive test that uses high-frequency sound waves — not radiation — to build a live picture of the testes and the structures around them. You may also hear it called a scrotal ultrasound, a scrotal scan or a testicular sonogram: they are the same examination.
The scan images each testis, the epididymis (the coiled tube behind each testicle that stores sperm), the spermatic cord (the bundle of vessels and ducts running up to the groin) and the scrotal wall. A setting called colour Doppler is used to show blood flow, which helps distinguish inflammation, varicoceles and other conditions. European urology guidance recommends high-frequency ultrasound as the imaging test for assessing testicular lumps, and it is the same first-line examination used across the NHS.
It is one of the core scans in our men’s health ultrasound range, and the single most direct way to find out what a lump, ache or swelling actually is.
Structures examined
Both sides are always examined and compared, even when your symptom is on one side only, because the healthy side is the best reference for what is normal for you.
Size, tissue pattern and symmetry of each testis. Any lump is measured and characterised — the key distinction is whether it is fluid-filled (usually harmless) or solid (needs specialist assessment).
The coiled tube behind each testicle and the cord above it. This is where the most common benign findings live: simple epididymal cysts, and the enlarged veins of a varicocele.
Blood flow to both testes is checked and compared. Increased flow points towards inflammation such as epididymo-orchitis; the pattern of veins confirms or excludes a varicocele.
Fluid around the testis (a hydrocele) is easy to see and measure. The scrotal wall itself is checked for thickening, and the groin region for any hernia extending downwards.
Findings
Most findings on a scrotal scan are benign. The examination reliably separates the harmless causes of a lump or swelling from the small minority that need urgent specialist care.
Suspected testicular torsion is deliberately not on this list: torsion is assessed in hospital as an emergency, not at an outpatient clinic — see the red-flag panel at the top of this page.
When to book
Book a scan for any new lump, swelling, ache or change in a testicle that is not an emergency. NHS guidance is clear that most testicular lumps are caused by something less serious — but also that you should never self-diagnose a lump: always get it checked.
| A new painless lump | The classic reason for this scan. Ultrasound establishes where the lump is and whether it is fluid-filled or solid — the distinction that determines everything that follows. |
|---|---|
| Change in size, shape or texture | NICE guidance (NG12) advises a suspected-cancer pathway referral for a non-painful enlargement or change in shape or texture of the testis — a scan gives that process a clear starting point. |
| Dull ache or heaviness | Often caused by a varicocele, a cyst or a hydrocele. The scan identifies which — and frequently, that nothing abnormal is present at all. |
| Swelling on one side | Ultrasound separates fluid around the testicle from swelling of the testicle or epididymis itself, which changes what happens next. |
| Discomfort after a knock or injury | A scan confirms the testis is intact and checks for bruising. Severe pain after injury is an emergency — go to A&E instead. |
| Fertility investigations | Scrotal ultrasound is sometimes requested as part of a fertility work-up, particularly to confirm or exclude a varicocele. |
Worried about a specific lump? Our guide testicular lumps or swelling — could it be cancer? walks through the possibilities in plain English before your appointment.
From our practice
The single most frequent trigger for a self-referral to our clinic is a new lump found in the shower. The pattern is remarkably consistent: sheer panic, and the wish for an immediate answer today rather than sitting with the worry in a GP waiting room. The reassuring part is what the scan usually shows. In the great majority of these appointments the lump turns out to be entirely benign — most often a simple, fluid-filled epididymal cyst, or a harmless hydrocele that needs no treatment at all.
A generalised, anonymised pattern from the Sonoworld men’s imaging casebook — not an individual case. Every lump still needs its own assessment, and sudden severe testicular pain is an emergency: go to A&E or call 999 rather than booking a scan.
Step by step
The whole visit takes around 20 minutes, is performed in a private room, and requires no preparation at all — eat and drink normally, shower as usual, and wear comfortable clothing.
Transparent pricing
£235, all-inclusive. That covers the focused history, ultrasound of both testicles with Doppler blood-flow assessment, instant verbal results and the written report within 24 hours. No booking, registration or report fees.
Insurance: we work with AXA Health, AXA Global, Healix Health and WPA — check your authorisation requirements with your insurer before booking. Self-pay patients need no referral at all.
The value is speed and certainty at an anxious moment: a same-day appointment, the scan explained to you as it happens, and a written report within 24 hours that any GP or urologist can act on. For most men, the outcome is fast, documented reassurance.
Choosing a route
Both routes use the same type of scan. The differences are in access, speed and how you receive your results.
| NHS pathway | Sonoworld (private) | |
|---|---|---|
| Getting a scan | GP appointment first, then a referral for imaging. | Self-refer and book online — no GP visit needed. |
| Waiting | Depends on the pathway and local demand; urgent suspected-cancer referrals are prioritised. | Same-day and next-day appointments are usually available. |
| Results | The report usually goes back to the referring clinician first. | Instant verbal results at the scan; the written report is sent to you within 24 hours. |
| Continuity | You may not meet the person reporting your scan. | The clinician who scans you explains the findings to you directly. |
| Cost | Free at the point of use. | £235 all-inclusive. |
For urgent suspected-cancer symptoms the NHS pathway is fast, free and the right route. This comparison is about access and convenience for non-urgent concerns — not clinical superiority.
After the scan
You leave knowing what was found. The written report that follows within 24 hours describes each testis and epididymis, any lump’s size, position and appearance, the Doppler blood-flow findings, and a clear conclusion with a recommendation.
Most reports are reassuring: a simple cyst, a hydrocele, a varicocele, or a normal scan. Where a finding does need action, the recommendation follows UK practice — for a solid lump within the testis, that means urgent specialist assessment in line with NICE suspected-cancer guidance, and we explain exactly what to do before you leave. To make sense of the wording radiologists and sonographers use, read our plain-English guide to interpreting your testicular ultrasound results, or start with the complete guide to testicular ultrasound.
Patient Reviews
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Common questions
Clinical Sources
Practice pattern in the “From our practice” section: Sonoworld men’s health imaging casebook — generalised and anonymised.