Posted June 08, 2025 in Fertility Blog & Information
13 minute read

Key Takeaways
- Varicoceles, or enlarged veins in the scrotum, are similar to varicose veins. They drastically reduce male fertility by raising testicular temperature and damaging sperm quality.
- Symptoms might be evident through testicular pain, swelling, or alteration in size. The majority of men are completely asymptomatic, so regular awareness and testing is essential.
- In addition, varicoceles can cause a decreased sperm count, reduced sperm motility and alteration in morphology. These elements, in addition to hormonal imbalances, together play a key role in infertility.
- Diagnosis typically involves a physical exam, scrotal ultrasound, and semen analysis, which help determine the severity and best treatment plan.
- Treatment options are extremely inconsistent. Consider surgical repairs including microsurgical and laparoscopic varicocelectomy or nonsurgical procedures including percutaneous embolization — all of which have associated risks, benefits.
- For better pediatric and maternal outcomes, as well as improved long-term health of parents, adopt and sustain a healthy lifestyle before conception. Combat oxidative stress with antioxidants and get your emotional support!
Varicoceles, or swollen veins in the scrotum, may reduce sperm count and result in male infertility. In the United States, varicoceles affect up to 15% of men. What’s more, this condition impacts nearly 40% of men with fertility problems.
Treatment options vary based on symptoms, age, and future plans to have children. These options are often watchful waiting, simple pain relief, or surgery to repair the varicoceles. Not every man with a varicocele needs treatment, but those who do have a few effective options to better increase fertility.
For those in the U.S., physicians usually help inform decisions through considerations about lifestyle, medical history, and future plans for their family. The following sections explain what each treatment option entails, what you can expect from each procedure, and how each option can potentially improve your fertility.
What Are Varicoceles Exactly?
Varicoceles are the most common surgical condition found in men with infertility, particularly in inner-city clinics throughout the United States. These are abnormally dilated veins in the scrotum. They are similar to varicose veins in the legs, except that they occur in the spermatic cord.
However, not all men who have a varicocele experience issues with fertility. Unfortunately, these swollen veins can interfere with normal sperm production and testicular function. Understanding what causes varicoceles, how to spot them, and the risks involved helps men make better choices about their health and future fertility.
Defining Varicoceles Simply
This swelling leads to the characteristic dilation of the venous plexus of the spermatic cord seen with a varicocele. You will be able to see bulging or crooked veins above the testicle. They’re usually found by a doctor during a physical exam.
They occasionally rely on the Valsalva maneuver as well, eliciting a response from the patient to bear down like blowing up a balloon. This can cause a varicocele to become engorged, which may make it difficult to detect while in a resting state.
Varicoceles cause the temperature of the testicle to increase, which is harmful to sperm quality and can eventually lead to testicle shrinkage. They come in three grades: grade one is only felt during the Valsalva maneuver, grade two is felt when standing, and grade three is seen without any special effort.
Common Causes and Risks
Anatomy, anatomy, anatomy. There’s a huge anatomical component involved. Faulty valves in the spermatic vein — most commonly located on the left side — are the primary cause.
The “nutcracker phenomenon,” in which the left renal vein is compressed, is one of the most well-known causes. Prolonged periods of standing or heavy lifting may aggravate varicoceles.
Common causes and risks include teens or people in their 20s, family history, and medical conditions such as kidney tumors or other tumors in the abdomen.
Recognizing Varicocele Symptoms
Other men may experience achy pain or heaviness in the affected testicle. You may find that one testicle appears smaller in size or feels smaller.
In many cases, symptoms are not immediately apparent. This is why most men only learn about a varicocele during a fertility test.
Varicoceles: The Fertility Connection
Varicoceles, or dilated veins in the scrotum, have a history of association with male infertility. Historical evidence shows that even in the late 19th and early 20th centuries, old medical records revealed that correcting varicocele could improve sperm quality. Yet, the connection is not straightforward.
Approximately two-thirds of men with varicocele remain fertile, and not everyone experiences increased fertility following surgery. Still, varicocele is diagnosed in as many as 70% of men with secondary infertility. In the general population, the incidence is 4%-30%. For men who visit fertility clinics, the risk is much higher.
How Varicoceles Harm Sperm
Varicoceles raise scrotal temperature, which can slow or block sperm growth. This heat hurts sperm motility, making it hard for sperm to swim well. Over time, it changes sperm shape.
At first, sperm count might look fine, but with time, all three semen factors—count, shape, and movement—can get worse. Rarely, this leads to azoospermia, where no sperm is found.
Beyond Sperm Count Impact
Beyond sperm production, varicoceles can throw off hormone levels, reducing testosterone. Side effects of low testosterone include mood changes, fatigue, and decrease in libido.
In the long term, men can experience declines in general reproductive health, beyond sperm parameters.
Oxidative Stress: A Key Factor
Oxidative stress occurs when there are an overabundance of unstable molecules known as free radicals. In men with varicoceles, this contributes to sperm DNA damage and reduced chances of fertility.
By attacking oxidative stress directly in varicocele treatment, you are actively protecting sperm health.
Getting a Clear Diagnosis
Getting a clear diagnosis is the first step in treating varicoceles and male infertility. Men who visit fertility clinics typically undergo a battery of tests to determine the true source of infertility. Pinpointing a varicocele can be difficult. Even widely accepted diagnoses sometimes leave room for debate among doctors.
Research has found that, despite obvious indications, it is difficult to obtain perfect consensus on a diagnosis. That’s why doctors rely on a combination of exams and tests to ensure that everything is accounted for.
The Essential Physical Exam
The process often starts with a physical exam. The doctor checks for swollen veins in the scrotum, which might feel like a “bag of worms.” This exam is more than a quick look. The doctor checks the size and feel of both testicles.
Changes in size or firmness can point to long-term effects of a varicocele. Still, physical exams can be hard to judge. Some cases are clear, but others are missed or misread, especially if the swelling is small or deep. That’s why more tests are often needed.
Ultrasound: Seeing Varicoceles
A scrotal ultrasound is the best way to detect, diagnose, and measure varicoceles. This noninvasive test uses sound waves to take pictures and visualize the blood flow in the veins, including their size. Ultrasound is painless, safe, and provides a much better picture than a physical exam by itself.
Sometimes, Doppler sonography is employed to visualize blood flow patterns within the varicose veins. These imaging modalities allow the physician to grade the varicocele, often determining the overall treatment strategy.
Semen Analysis: Fertility Snapshot
Semen analysis checks sperm count, movement, and shape. Men with varicoceles often have one or more abnormal results, even when no other signs show up. Since many men with infertility have no clear cause, this test gives key clues.
The results help decide if the varicocele is likely causing fertility problems or if other issues are at play.
Exploring Varicocele Treatment Paths
Varicocele is the most common treatable cause of male infertility. Varicocele occurs in the majority of men with primary and secondary infertility. This causes a disturbance in the lower temperature environment that is required for healthy sperm production. Consequently, it frequently results in sperm functional and male fertility alterations.
Varicocele treatment options Varicocele management starts with multiple treatment options tailored to the individual. Selecting the proper treatment approach relies on symptom severity, fertility desires, and overall patient health.
1. Surgical Repair: Varicocelectomy
Varicocelectomy is a surgical procedure that repairs the enlarged veins in the scrotum. The objective is to return blood flow to normal and allow the testes to remain cool. Clinical research indicates that this surgery can significantly increase sperm count and quality, often reversing the deleterious effects on fertility.
Surgery is thought to reduce oxidative stress in the region, benefitting the sperm environment.
2. Microsurgical Varicocelectomy: Gold Standard?
Microsurgical varicocelectomy is frequently referred to as the gold standard. Using a microscope, surgeons are able to visualize and preserve small blood vessels and nerves. This technique allows for a decreased incidence of complications, such as seroma development or vascular injury.
The recovery is much faster and the fertility results are vastly better than those produced using earlier techniques.
3. Laparoscopic Varicocelectomy Explained
Laparoscopic varicocelectomy is a minimally invasive option. With minimally invasive surgeries, surgeons utilize smaller instruments as well as a camera, so the procedure requires less pain and results in a shorter hospital stay.
Most men are able to return to normal activity in a matter of days.
4. Percutaneous Embolization: Non-Surgical
Percutaneous Embolization—Non-Surgical Solution involves a thin catheter that seals off the problematic vein from the inside. This option reduces the size of the varicocele and positively impacts sperm quality including count while requiring very little downtime.
5. Weighing Risks and Benefits
Risks of surgery may involve risk of infection, bleeding, or varicocele recurrence. Benefits include improved sperm health, increased testosterone levels, and likely improved fertility.
Deciding on Varicocele Treatment
Each individual’s history and reproductive plans should be thoughtfully considered before deciding on a treatment for varicocele. This is particularly critical when facing fertility is at stake. It’s a conversation that doctors and patients alike need to have, putting all their cards face up—everything from medical test outcomes to plans for the future.
The age of the individual and the age of their partner play a big role in the equation. Further, how long they’ve been TTC and the lab results also factor heavily here. Even the grade of the varicocele—how visible the swelling is—matters. For those living in the U.S., the hope is to balance out the ideal with the reality to find the best course for their individual circumstances.
When Is Intervention Necessary?
Treatment is usually suggested when men have pain, clear fertility issues, or a high-grade varicocele. If semen tests show poor sperm count or quality—done at least twice, three months apart—doctors may talk about surgery or other steps.
For men with mild symptoms and normal testicular size, watchful waiting might be enough. If only varicocele is found, the benefit of surgery is small. If a man’s partner is over 35 or if his lab work shows high FSH, moving straight to options like ICSI (intracytoplasmic sperm injection) may be smarter.
Your Fertility Goals Matter
Every couple’s fertility journey informs what happens next. Individuals desiring fertility alone are less likely to choose surgical intervention unless it was beneficial. If there are additional fertility issues, assisted techniques such as ICSI may be a better option.
This is even more so if you require quick turnaround times! Getting an honest conversation about costs and chances of success allows couples to make the decision.
Age and Treatment Success
Younger men tend to have improved outcomes following repair. Delay can result in further testicular injury, so treating sooner rather than later often provides the best chance at future fatherhood.
The age of the female partner is important too, as time can be a more significant factor for older couples.
Optimizing Your Fertility Journey
Identifying the most effective approach to improve fertility usually requires a broader view beyond strictly medical solutions. When it comes to varicoceles and male infertility the future may seem daunting, but every little, tangible change makes a difference. Approximately 15% of couples of reproductive age experience infertility.
In almost half of these cases, male factors are an important part. It’s good to consult a specialist if you haven’t succeeded after a year. If the person with ovaries is 35 or older, plan to see someone after six months. By focusing on the little things each day, couples can maximize treatment and increase their chances.
Lifestyle Changes That Help
These are small changes all of us can make. Maintaining a healthy body weight, avoiding tobacco, and reducing alcohol consumption contribute to healthy sperm. Routine exercise—whether it’s long brisk walks, biking, swimming, or something else—can play a big role in keeping hormones balanced.
Providing the body with a variety of nutrient dense fruits, vegetables, lean meats, and whole grains will help fuel your body and support this process. While these are basic lifestyle changes, their impact can be incredible. They provide encouragement for men who are facing infertility difficulties and men who are pending results from varicocele repair.
Timing intercourse to the six days leading up to ovulation and the day of can increase the likelihood of achieving a pregnancy.
Antioxidants: Supporting Sperm Health
Oxidative stress can hurt sperm, but antioxidants fight this. Foods rich in vitamin C (oranges, bell peppers), vitamin E (nuts, seeds), and zinc (beef, lentils) help sperm stay strong. Adding these foods may help men with varicoceles, as studies show semen can improve after repair in 30% to 60% of cases.
The Emotional Side of Infertility
We all know that infertility is hard on couples. Access to open discussions, counseling services, or peer support groups can help relieve that pressure. Often, nothing is more comforting than being able to share your story with others who get it.
Frequently Asked Questions
What is a varicocele?
A varicocele is an enlarged vein in the scrotum, like a varicose vein in the leg. It’s the most prevalent reversible cause of male infertility.
How do varicoceles affect male fertility?
Increased scrotal temperature has been shown to lower sperm quality and count, and varicoceles can lead to an increase in scrotal temperature. When this happens, it can become more difficult to get pregnant.
How is a varicocele diagnosed?
Your doctor will typically diagnose your varicocele during a physical exam and in some cases using an ultrasound. It’s a simple, safe and non-invasive procedure.
What are the main treatment options for varicoceles?
Treatment can range from surgical repair, to embolization (a minimally invasive procedure), or only supportive care when symptoms are mild.
Is surgery the only choice for treating varicoceles?
Is surgery the only treatment option for varicoceles? Other men fare better with embolization or simply keeping an eye on the condition if fertility is not compromised.
Can treating a varicocele improve fertility?
Yes. Most men experience better sperm quality and higher rates of pregnancy following treatment.
When should I see a doctor for a varicocele?
When should I see a doctor for a varicocele. The sooner you get evaluated the better you can protect your fertility.