Testicular Ultrasound: What Men Should Know

If you have noticed a lump, swelling, or pain in your testicles or scrotum, your doctor may order a testicular ultrasound. This is the primary imaging tool for evaluating scrotal abnormalities — and it is quick, painless, and uses no radiation.

Why Your Doctor Ordered This Test

Testicular ultrasound is used to evaluate a lump or mass felt during a physical exam, pain or swelling in the scrotum, an injury to the groin area, an undescended testicle, possible torsion (twisting of the testicle, which is a medical emergency), follow-up after a known condition such as a hydrocele or varicocele, and in some cases, male infertility.

According to the American Urological Association, ultrasound is the imaging modality of choice for scrotal evaluation because it provides excellent detail of the testicles and surrounding structures without radiation.

What a Testicular Ultrasound Can Detect

Testicular Cancer

Testicular cancer is relatively rare but is the most common cancer in men ages 15 to 35. The American Cancer Society reports about 9,700 new cases per year in the United States.

Ultrasound can detect tumors as small as a few millimeters. If a suspicious mass is found inside the testicle, further evaluation (usually blood tests and surgical consultation) is needed.

Hydrocele

A hydrocele is a collection of fluid around the testicle. It usually appears as painless swelling and is almost always benign. Ultrasound confirms the diagnosis and rules out other causes.

Varicocele

A varicocele is an enlargement of the veins within the scrotum, similar to varicose veins in the legs. It is one of the most common causes of male infertility and is typically found on the left side. Ultrasound with Doppler imaging shows abnormal blood flow in the enlarged veins.

Epididymitis and Orchitis

Infection or inflammation of the epididymis (the tube that stores sperm) or the testicle itself causes pain, swelling, and redness. Ultrasound can identify inflammation, abscesses, and complications.

Testicular Torsion

Torsion occurs when a testicle rotates and twists the spermatic cord, cutting off blood supply. This is a surgical emergency. Ultrasound with Doppler imaging shows absent or reduced blood flow, prompting immediate surgery to save the testicle.

Cysts and Benign Growths

Simple cysts and benign growths such as spermatoceles (cysts in the epididymis) are common incidental findings and are almost never cancerous.

What to Expect During the Exam

A testicular ultrasound is straightforward:

1. Lie on your back — You will lie on an exam table with a towel draped over your lower body
2. Apply gel — The sonographer applies warm gel to the scrotum
3. Scan — A small transducer is moved gently over the area, creating real-time images
4. Doppler imaging — The sonographer may use color Doppler to assess blood flow
5. Duration — The exam takes 15 to 30 minutes

There is no preparation needed. The exam is not painful, though the gel may feel slightly cold at first.

Understanding Your Results

A board-certified radiologist reviews your images and sends a report to your doctor, typically within one to two business days. The report describes the testicles, epididymis, and any abnormalities found.

If the ultrasound shows a solid mass inside the testicle, your doctor will likely order blood tests for tumor markers (AFP, beta-HCG, LDH) and refer you to a urologist.

If a benign condition like a hydrocele or varicocele is found, your doctor will discuss whether treatment is needed based on your symptoms.

Do Not Delay Evaluation

Many men feel embarrassed about scrotal symptoms and put off seeking care. But lumps and pain can indicate conditions that range from easily treatable to life-threatening. The National Cancer Institute emphasizes that early detection of testicular cancer leads to excellent outcomes — the five-year survival rate is 95 percent when caught early.

Schedule Your Testicular Ultrasound

At Advanced Medical Imaging, we provide private, professional scrotal ultrasound exams with same-day appointments and fast results. If your doctor has ordered this test, call (727) 398-5999 or schedule online.