Varicocele is the most common correctable cause of male infertility, found in 35 to 44% of men investigated for difficulty conceiving. It involves dilation of the pampiniform venous plexus in the scrotum, which raises testicular temperature and impairs spermatogenesis. Most varicoceles are asymptomatic and discovered only during infertility evaluation. Diagnosis uses clinical grading and scrotal Doppler ultrasound. Microsurgical subinguinal varicocelectomy is the gold standard treatment with the lowest recurrence and complication rates. Semen improvement is seen in 60 to 70% of treated men; natural pregnancy rates of 30 to 50% are reported at 12 months. Other male infertility causes including hormonal disorders, azoospermia, genetic factors, and lifestyle contributors are also evaluated at Gurukrupa Urology Clinic.
Male infertility contributes to approximately half of all infertility cases. Varicocele, an abnormal enlargement of the veins within the scrotum, is the most common correctable cause, found in around 40% of men presenting with difficulty conceiving. Many men have no symptoms, making it underdiagnosed. Understanding what a varicocele is, how it affects fertility, and what treatment involves helps couples navigate infertility investigation efficiently.

What Is a Varicocele?

A varicocele is an enlargement of the pampiniform plexus, the network of veins surrounding the testis, similar to varicose veins in the leg. When the venous valves malfunction, blood pools and the veins dilate. Varicoceles are found in approximately 15% of the general male population, but in 35 to 44% of men investigated for primary infertility. The left side is affected in most cases due to the anatomical angle of the left testicular vein; bilateral disease affects a significant minority.

How Varicocele Affects Sperm and Fertility

The primary mechanism is elevated scrotal temperature. Healthy sperm production requires a temperature 1.5 to 2 degrees Celsius below core body temperature. Pooling of warm venous blood in the dilated veins raises testicular temperature and impairs spermatogenesis. Additional mechanisms include increased oxidative stress from backflow of adrenal and renal metabolites, and reduced testosterone production. The cumulative effect on semen analysis is typically reduced sperm count, reduced motility, and increased abnormal morphology.

Symptoms of Varicocele

The majority of varicoceles cause no symptoms and are found only during infertility evaluation. When symptoms do occur, they include:


Scrotal discomfort or a dull ache
, particularly after prolonged standing or physical activity, that improves on lying down. This is the most common reported symptom.

A sensation of heaviness or fullness in the scrotum, sometimes described as a dragging feeling.

A visible or palpable mass in the scrotum, described as a bag of worms, felt on examination when the varicocele is large.

Testicular atrophy (shrinkage), particularly of the left testicle, may indicate that varicocele is affecting testicular function.

Many men with significant fertility impact have none of these symptoms, which is why semen analysis is essential in all infertility evaluations regardless of scrotal complaints.

How Varicocele Is Diagnosed

Physical examination in the standing and lying positions, with Valsalva manoeuvre, grades the varicocele from I (palpable only during Valsalva) to III (visible through the scrotal skin).

Scrotal Doppler ultrasound is the gold standard imaging investigation, measuring vein diameter and detecting retrograde blood flow. Veins wider than 3mm with flow reversal confirm the diagnosis.

Semen analysis (two samples, 2 to 3 days abstinence each time) assesses count, motility, and morphology. Hormonal evaluation may be added.

Treatment Options for Varicocele

Treatment is recommended when varicocele is associated with abnormal semen parameters, male factor infertility, or testicular atrophy in adolescents. An asymptomatic varicocele in a man not trying to conceive does not necessarily require treatment.

Microsurgical subinguinal varicocelectomy is the current gold standard. Through a small incision below the groin, an operating microscope is used to ligate the dilated veins while preserving the testicular artery, lymphatics, and vas deferens. It has the lowest recurrence rate and the lowest risk of hydrocele formation.

Laparoscopic varicocelectomy is an effective alternative performed through small abdominal incisions under general anaesthesia.

Percutaneous embolisation uses a radiological approach under local anaesthesia to block the dilated vein but carries higher recurrence rates than microsurgical repair.

Gurukrupa Urology Clinic is located at Shop No-204, 1st Floor, Matrix Business Centre, Amarpreet-Roplekar Road, Kalda Corner, Chhatrapati Sambhajinagar, Maharashtra. Dr Mayur Dalvi (MBBS, MS General Surgery, MCh Urology) provides scrotal Doppler ultrasound, semen analysis review, hormonal assessment, and microsurgical varicocelectomy. Clinic hours: 6:00 PM to 9:00 PM. Contact: +91 9096894897 | +91 8177884043. Website: drmayurdalvi.com.

What to Expect After Treatment

Sperm take approximately 72 days to mature, so meaningful improvement in semen analysis is expected at 3 to 6 months post-treatment. Microsurgical varicocelectomy improves sperm count in approximately 60 to 70% of men, with natural pregnancy rates of 30 to 50% at 12 months in appropriately selected couples. Men with very severe abnormalities or couples with additional female factors may still require IVF or ICSI after varicocelectomy.

Other Causes of Male Infertility

Varicocele is the most common correctable cause, but male infertility has other contributing factors. Hormonal disorders reduce sperm production. Obstructive azoospermia may result from prior infections, vasectomy, or congenital absence of the vas deferens. Non-obstructive azoospermia results from testicular failure. Genetic causes include Klinefelter syndrome and Y chromosome microdeletions. Lifestyle factors such as heat exposure, anabolic steroids, and smoking also contribute. A complete evaluation at Gurukrupa Urology Clinic assesses all of these systematically.

Consult Dr Mayur Dalvi at Gurukrupa Urology Clinic

If you have been trying to conceive without success, have been told you have a varicocele, or have received an abnormal semen analysis, Dr Mayur Dalvi at Gurukrupa Urology Clinic provides full male infertility evaluation including scrotal ultrasound, semen analysis review, hormonal assessment, and microsurgical varicocelectomy.

 

Gurukrupa Urology Clinic | Shop No-204, 1st Floor, Matrix Business Centre, Amarpreet-Roplekar Road, Kalda Corner, Chhatrapati Sambhajinagar | 6:00 PM to 9:00 PM

Call +91 9096894897 | +91 8177884043

FREQUENTLY ASKED QUESTIONS

Q1: What is a varicocele and does it cause infertility?
A varicocele is an enlargement of the veins within the scrotum that drain the testicle, similar to varicose veins. It is found in approximately 35 to 44% of men investigated for infertility and is the most common correctable cause of male infertility. It impairs sperm production primarily by raising scrotal temperature and increasing oxidative stress in the testicle.

 

Q2: Can a varicocele be present without any symptoms?
Yes. Most varicoceles cause no symptoms at all and are discovered during infertility evaluation. When symptoms occur, they typically include a dull scrotal ache or heaviness, particularly after prolonged standing, that improves on lying down. The absence of symptoms does not mean the varicocele is not affecting fertility.

 

Q3: How is a varicocele diagnosed?
Diagnosis involves physical examination in the standing and lying position with Valsalva manoeuvre, followed by scrotal Doppler ultrasound, which is the gold standard imaging investigation. Ultrasound confirms the vein diameter and detects retrograde blood flow. Semen analysis assesses the functional impact on sperm.

 

Q4: Does every man with a varicocele need treatment?
No. Treatment is recommended when a varicocele is associated with abnormal semen parameters, a couple experiencing infertility, or testicular atrophy in an adolescent. An asymptomatic varicocele found incidentally in a man not trying to conceive does not necessarily require surgical treatment.

 

Q5: What is microsurgical varicocelectomy?
Microsurgical varicocelectomy is the gold standard surgical treatment. It is performed through a small incision below the groin using an operating microscope. The dilated veins are tied off while the testicular artery, lymphatics, and vas deferens are carefully preserved. It has the lowest recurrence and complication rates of all varicocele treatment methods.

 

Q6: How long does it take to see improvement in sperm parameters after varicocelectomy?
Sperm take approximately 72 days to complete their maturation cycle. Meaningful improvement in semen analysis is expected at 3 to 6 months after treatment. Studies show improvement in sperm count in 60 to 70% of treated men, and natural pregnancy rates of 30 to 50% are reported at 12 months post-procedure in appropriately selected couples.

 

Q7: Can varicocele treatment lead to natural pregnancy?
Yes. Natural pregnancy rates of 30 to 50% at 12 months are reported after microsurgical varicocelectomy in appropriately selected couples. Outcomes depend on the severity of semen abnormality before treatment, the female partner’s fertility status, and the couple’s age. Men with severely abnormal sperm or couples with additional female factors may still require IVF or ICSI.

 

Q8: What are the other causes of male infertility apart from varicocele?
Other causes include hormonal disorders, obstructive azoospermia from prior infections or vasectomy, non-obstructive azoospermia from testicular failure, genetic causes such as Klinefelter syndrome or Y chromosome microdeletions, and lifestyle factors including heat exposure, anabolic steroid use, and smoking. A complete male infertility evaluation assesses all of these.

 

Q9: Is varicocele treatment painful? What is the recovery time?
Microsurgical varicocelectomy is performed under anaesthesia. Most patients experience mild to moderate discomfort managed with standard pain medication for 3 to 5 days. Most men return to desk work within one week and to physical activity within two to three weeks. Scrotal support is advised for several weeks.

 

Q10: Where can I get a varicocele evaluation in Aurangabad?
Dr Mayur Dalvi at Gurukrupa Urology Clinic, Kalda Corner, Chhatrapati Sambhajinagar provides complete male infertility evaluation including scrotal Doppler ultrasound, semen analysis review, hormonal assessment, and microsurgical varicocelectomy. Call +91 9096894897 or visit drmayurdalvi.com.

This article is authored by Dr Mayur Dalvi, Urologist at Gurukrupa Urology Clinic, Chhatrapati Sambhajinagar. Content is based on American Urological Association and American Society for Reproductive Medicine guidelines on varicocele and infertility, WHO Laboratory Manual for Examination of Human Semen, and published meta-analyses on microsurgical varicocelectomy outcomes.