A varicocele is an enlargement of the veins within the loose bag of skin that holds your testicles (scrotum). A varicocele is similar to a varicose vein you might see in your leg.
Varicoceles are a common cause of low sperm production and decreased sperm quality, which can cause infertility. However, not all varicoceles affect sperm production. Varicoceles can also cause testicles to fail to develop normally or shrink.
Most varicoceles develop over time. Fortunately, most varicoceles are easy to diagnose and many don't need treatment. If a varicocele causes symptoms, it often can be repaired surgically.
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Before Varicocele Treatment
A varicocele often produces no signs or symptoms. Rarely, it might cause pain. The pain may:
. Vary from sharp to dull discomfort
. Increase with standing or physical exertion, especially over long periods
. Worsen over the course of a day
. Be relieved when you lie on your back
. Impaired fertility
With time, varicoceles might enlarge and become more noticeable. A varicocele has been described as looking like a "bag of worms." The condition might cause a swollen testicle, almost always on the left side.
When to see a doctor
Because a varicocele usually causes no symptoms, it often requires no treatment. Varicoceles might be discovered during a fertility evaluation or a routine physical exam.
However, if you experience pain or swelling in your scrotum, discover a mass on your scrotum, notice that your testicles are different sizes, or develop a varicocele in your youth, or you're having problems with fertility, contact your doctor. A number of conditions can cause a scrotal mass or testicular pain, some of which require immediate treatment.
Your spermatic cord carries blood to and from your testicles. It's not certain what causes varicoceles.
However, many experts believe a varicocele forms when the valves inside the veins in the cord prevent your blood from flowing properly. The resulting backup causes the veins to widen (dilate). This might cause damage to the testicle and result in worsened fertility.
Varicoceles often form during puberty. Varicoceles usually occur on the left side, most likely because of the position of the left testicular vein.
There don't appear to be any significant risk factors for developing a varicocele.
A varicocele might cause:
. Shrinkage of the affected testicle (atrophy). The bulk of the testicle comprises sperm-producing tubules. When damaged, as from varicocele, the testicle shrinks and softens. It's not clear what causes the testicle to shrink, but the malfunctioning valves allow blood to pool in the veins, which can result in increased pressure in the veins and exposure to toxins in the blood that may cause testicular damage.
. Infertility. Varicoceles might keep the local temperature in or around the testicle too high, affecting sperm formation, movement (motility) and function.
Your doctor will conduct a physical exam, which might reveal a nontender mass above your testicle that feels like a bag of worms. If it's large enough, your doctor will be able to feel it.
If you have a smaller varicocele, your doctor might ask you to stand, take a deep breath and hold it while you bear down (Valsalva maneuver). This helps your doctor detect abnormal enlargement of the veins.
If the physical exam is inconclusive, your doctor might order a scrotal ultrasound. This test, which uses high-frequency sound waves to create precise images of structures inside your body, might be used to ensure there isn't another reason for your symptoms. In certain cases, further imaging might be recommended to rule out other causes for the varicocele, such as a tumor compressing the spermatic vein.
During Varicocele Treatment
Varicocele treatment might not be necessary. Many men with varicoceles are able to father a child without any treatment. However, if your varicocele causes pain, testicular atrophy or infertility or if you are considering assisted reproductive techniques, you might want to undergo varicocele repair.
The purpose of surgery is to seal off the affected vein to redirect the blood flow into normal veins. In cases of male infertility, treatment of a varicocele might improve or cure the infertility or improve the quality of sperm if techniques such as in vitro fertilization (IVF) are to be used.
Clear indications to repair a varicocele in adolescence include progressive testicular atrophy, pain or abnormal semen analysis results. Although treatment of a varicocele generally improves sperm characteristics, it's not clear if an untreated varicocele leads to progressive worsening of sperm quality over time.
Varicocele repair presents relatively few risks, which might include:
. Buildup of fluid around the testicles (hydrocele)
. Recurrence of varicoceles
. Damage to an artery
Repair methods include:
. Open surgery. This treatment usually is done on an outpatient basis, during general or local anesthetic. Commonly, your surgeon will approach the vein through your groin (inguinal or subinguinal), but it's also possible to make an incision in your abdomen or below your groin.
Advances in varicocele repair have led to a reduction of post-surgical complications. One advance is the use of the surgical microscope, which enables the surgeon to see the treatment area better during surgery. Another is the use of Doppler ultrasound, which helps guide the procedure.
You might be able to return to normal, nonstrenuous activities after two days. As long as you're not uncomfortable, you might return to more strenuous activity, such as exercising, after two weeks.
Pain from this surgery generally is mild but might continue for several days or weeks. Your doctor might prescribe pain medication for a limited period after surgery. After that, your doctor might advise you to take over-the-counter painkillers, such as acetaminophen (Tylenol, others) or ibuprofen (Advil, Motrin IB, others) to relieve discomfort.
Your doctor might advise you not to have sex for a period of time. Most often, it will take several months after surgery before improvements in sperm quality can be seen with a semen analysis. This is because it takes approximately three months for new sperm to develop.
Open surgery using a microscope and subinguinal approach (microsurgical subinguinal varicocelectomy) has the highest success rates when compared with other surgical methods.
. Laparoscopic surgery. Your surgeon makes a small incision in your abdomen and passes a tiny instrument through the incision to see and to repair the varicocele. This procedure requires general anesthesia.
. Percutaneous embolization. A radiologist inserts a tube into a vein in your groin or neck through which instruments can be passed. Viewing your enlarged veins on a monitor, the doctor releases coils or a solution that causes scarring to create a blockage in the testicular veins, which interrupts the blood flow and repairs the varicocele. This procedure isn't as widely used as surgery.
After embolization, you can often return to work after two days, and begin exercising after seven to 10 days.
After Varicocele Treatment
Lifestyle and home remedies
If you have a varicocele that causes you minor discomfort, but doesn't affect your fertility, you might try the following for pain relief:
. Take over-the-counter painkillers, such as acetaminophen (Tylenol, others) or ibuprofen (Advil, Motrin IB, others).
. Wear an athletic supporter to relieve pressure.