Scrotal and Testicular Ultrasound: Lumps, Pain and Doppler Assessment

A scrotal ultrasound examines the testicles and the surrounding structures, including the epididymis. It is commonly requested for a lump, swelling, injury or pain. “Testicular ultrasound” and “scrotal ultrasound” often refer to the same examination area, so they do not usually require separate appointments.

Sudden testicular pain: do not wait for a routine ultrasound

Sudden, severe testicular pain needs immediate hospital assessment, particularly with nausea, vomiting or abdominal pain. One possible cause is testicular torsion, in which twisting interferes with the blood supply. Do not spend time comparing scan prices or waiting for a private imaging slot before seeking emergency care. NHS hospital guidance states that ultrasound cannot exclude torsion and must not delay urgent surgical assessment when torsion is suspected.

What can a scrotal ultrasound show?

The scan can locate a lump and assess whether it contains fluid or solid tissue. It can also help investigate inflammation, injury and enlarged veins called a varicocele. Doppler imaging adds information about blood flow. These findings help the clinician decide what to do next, but a solid lump is not automatically a cancer diagnosis and an image cannot always identify the exact tissue type.

A varicocele assessment may form part of an infertility investigation. It does not replace the other examinations or tests that the treating clinician considers necessary. Ask whether the report describes a finding that explains your symptoms or an incidental observation.

Preparing for the appointment

Routine scrotal ultrasound usually needs little special preparation. Wear clothing that is easy to adjust and bring the referral and earlier reports. Tell the examiner exactly where you feel the lump or pain, when it began, and whether there was an injury. You can ask about privacy and a chaperone before the examination.

Questions to ask when you receive the report

Ask whether the finding is inside the testicle or in surrounding tissue, whether blood flow was assessed, and whether a urology appointment or follow-up scan is recommended. Confirm who will arrange the next step and how soon. Persistent or changing symptoms deserve clinical review even if a previous report seemed reassuring.

For clinics selecting an ultrasound machine, probe suitability and blood-flow capability should be specified by the clinician. Our ultrasound equipment buying guide explains how to check the supplied configuration.

A referral concerning penile blood flow is a different examination from a scrotal scan. The penile Doppler guide explains its purpose and aftercare.

Sources

ACR/RSNA: scrotal ultrasound; NHS: testicle pain; Frimley Health: testicular torsion guidance. Reviewed 13 November 2026. General education; individual findings need clinical interpretation.