By Jeffrey Weishaupt
Medically Reviewed by Poonam Sachdev on October 28, 2021
The scrotum is a bag of skin behind the penis, containing testicles and other structures responsible for storing, producing, and transporting male sex hormones and sperm. A scrotal mass may contain fluids, abnormal tissue, or regular scrotal contents that have become hardened or inflamed.
Scrotal masses are also called epididymal cysts or epididymal masses when they are painless, noncancerous, and filled with fluid.
Scrotal masses can be cancerous. They are more likely to be caused by less serious conditions affecting the testicles and male sexual health.
Regular self-examination is important to recognize cysts quickly and get treatment. While these masses are usually harmless, they could cause damage to your testicles.
If you are young, a scrotal cyst could cause delayed development during puberty and infertility later in life.
What Are The Causes of Scrotal Masses?
Scrotal or epididymal masses are caused by:
Testicular Cancer. A non-tender mass could be due to a tumor in the testicles that contains abnormal tissue. Some people may have swelling and pain in the scrotal mass. Otherwise, testicular tumors are generally painless.
Epididymitis. Any illness with the suffix "itis" indicates inflammation. In this case, the title refers to the inflammation of the epididymis, the structure behind the testicle containing and transporting sperm.
Spermatocele. This is commonly called an epididymal mass or cyst. These masses are typically filled with fluid and are noncancerous and painless. You will find them above your testicles.
Hydrocele. The sacs surrounding each of your testicles have many layers. Sometimes, fluid may fill between these layers, creating a lump on the testicle. Additionally, hydrocele can form in infants because of the improper sealing of an opening between the scrotum and the abdomen during development in the womb. A hydrocele forms in adults due to infection, injury, or irregular absorption and production of scrotal fluid.
Varicocele. Varicoceles usually form on the left side of the scrotum. This condition occurs when the scrotal veins carrying blood from the testicles to the scrotum are enlarged. Varicocele can lead to infertility.
Testicular Torsion. This happens when the spermatic cord, a tube carrying semen to the penis, twists. Testicular torsion is quite painful, as it cuts off the testicle's blood supply. If you do not get quick attention from your doctor, the testicle could lose its function.
What Are the Symptoms of a Scrotal Mass?
Scrotal (epididymal) mass symptoms differ among people. They include:
An unusual lump near the testicles
Pain in the lower back, abdomen, and groin
Heaviness or dull aching pain in the scrotum
Sudden pain
Swelling in the area
Vomiting or nausea
Redness in the scrotum
Swollen, tender, or hard testicles
If the scrotal mass is due to an infection, symptoms may include blood or pus in the urine and fever. You may also urinate more often.
If you are young, a scrotal cyst that affects your testicular health seriously could cause delayed development during puberty and infertility.
How Are Scrotal Masses Diagnosed?
When you go to a doctor with a lump on your testicle, they will first ask you about your medical history. Then, they will use the following tests to identify the cause of the epididymal mass:
Blood or urine test: These tests show if you have an infection. They may also show signs of severe conditions like cancer.
Physical exam: The doctor will touch the mass and feel its contents and hardness to identify what it may contain.
Transillumination. This is a procedure in which a bright light is shone on your testicle. The doctor uses this to see the size and location of the mass.
Imaging: A doctor can use ultrasound to check the lump's location and rule out certain conditions, like cancer or a hernia.
What Is the Treatment for a Scrotal Mass?
Treatment depends on the cause of the scrotal mass. In some cases, you may not need much treatment. Here are some common treatments for scrotal masses:
Antibiotics and other medications to treat infections
Surgery to drain or remove a scrotal mass
Testicle removal through surgery, in the case of testicular cancer
If the mass is due to a hernia, the doctor will push the protruding section back into its place.
Should I See a Doctor if I Feel a Mass in My Testicles?
If the lump has suddenly appeared on your testicle, or a lump that has been there becomes painful, you should see your doctor immediately. Treatment may prevent permanent testicular damage.
To be on the safe side, though, it is best to get every scrotal mass checked by your doctor, even if there is no pain or swelling.
Source: © 2020 WebMD, LLC.
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