AI Summary Overview
What is a Hydrocele?
A hydrocele is a collection of fluid within the thin sac surrounding a testicle, called the tunica vaginalis. It can occur on one side or both sides of the scrotum. The swelling is usually smooth and painless, although a large hydrocele can cause heaviness, pressure or discomfort.
A hydrocele can develop before birth or later in life. In babies, it is often associated with the processus vaginalis, a small opening that normally closes as the baby develops. If this opening remains exposed, fluid from the abdomen can pass into the scrotum, which can result in a communicating hydrocele. If the opening closes but fluid remains trapped around the testicle, then it is called a non-communicating hydrocele.
In adults, a hydrocele can develop due to inflammation, infection, injury or another condition affecting the testicle or surrounding tissues. Sometimes, no clear underlying cause is identified. Although a hydrocele itself is usually harmless, any new scrotal swelling should be examined. This is particularly important in adults because many other conditions can produce similar symptoms.
What are the Types of Hydrocele?
Hydroceles can be classified according to how they develop and where the fluid collects. The common types of hydroceles are as follows:
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Communicating Hydrocele A communicating hydrocele occurs when the processus vaginalis remains open between the abdominal cavity and the scrotum. Fluid can move through this opening, so the size of the swelling may change during the day or with activity. Communicating hydroceles may occur alongside an inguinal hernia because the same persistent opening can allow abdominal contents to pass into the groin or scrotum. For this reason, children with a communicating hydrocele may need to be evaluated for an associated inguinal hernia.
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Non-Communicating Hydrocele A non-communicating hydrocele occurs when the connection between the abdominal cavity and scrotum has closed, but fluid remains around the testicle. This type is common in newborns and young children. Many congenital hydroceles gradually resolve as the fluid is absorbed. Persistent, enlarging or complicated hydroceles require medical assessment.
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Secondary Hydrocele A secondary hydrocele develops because of another condition affecting the testicle or surrounding structures. Possible causes include infection, inflammation, trauma and, less commonly, a tumour. In adults, identifying the underlying cause is important because treating that condition is an essential part of management.
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Filarial Hydrocele Filarial hydrocele is associated with lymphatic filariasis, a mosquito-borne parasitic infection that damages the lymphatic system. Hydrocele is a recognised chronic manifestation of lymphatic filariasis and remains an important public health issue in endemic areas.
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Encysted Hydrocele of the Cord An encysted hydrocele of the cord occurs when fluid gets collected along the spermatic cord rather than around the testicle itself. It differs from a typical testicular hydrocele and may be detected during a physical examination or through imaging.
How Common is Hydrocele in India?
Hydrocele is relatively common in India, particularly among newborns and in regions where lymphatic filariasis is endemic. However, a single current national prevalence figure that represents every type of hydrocele in India is not available.
Lymphatic filariasis is an important contributor to hydrocele cases in endemic areas. According to the National Centre for Vector Borne Diseases Control (NCVBDC), indigenous lymphatic filariasis cases have been reported from around 350 districts across 20 states and Union Territories. As of 2025, India had reported approximately 1.15 lakh cases of hydrocele associated with the national lymphatic filariasis programme. This figure should not be interpreted as the total number of hydrocele cases from all causes in India.
Indian authorities are currently continuing to implement lymphatic filariasis elimination measures, including mass drug administration and morbidity management and disability prevention services. The national programme also supports hydrocele operations in identified health facilities.
What are the Symptoms of Hydrocele?
The most common symptom of a hydrocele is painless swelling of the scrotum. The swelling may occur on one or both sides and can gradually become more noticeable. Some people have no significant symptoms apart from an increase in scrotal size.
The common symptoms of a hydrocele are as follows:
| Early Warning Symptoms | Advanced Stage Symptoms |
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Diseases Similar to Hydrocele
Several conditions can cause scrotal swelling and may initially resemble a hydrocele. A doctor may use physical examination and ultrasound to distinguish between them. The table below distinguishes a hydrocele from an inguinal hernia, a varicocele and a testicular tumour.
Hydrocele vs. Inguinal Hernia vs. Varicocele vs. Testicular Tumour
| Feature | Hydrocele | Inguinal Hernia | Varicocele | Testicular Tumour |
| Main Cause | Fluid accumulation around the testicle | Abdominal tissue protruding through a weak area in the groin | Enlarged veins around the testicle | Abnormal growth of testicular cells |
| Typical Swelling | Smooth, fluid-filled scrotal swelling | Groin or scrotal bulge that may change with coughing or straining | Enlarged veins, often described as a “bag of worms” | Usually a firm lump or change within the testicle |
| Pain | Usually painless | May cause discomfort or pain | May cause aching or heaviness | May be painless or associated with discomfort |
| Effect of Position/Activity | May vary in communicating hydrocele | May become more prominent with standing, coughing or straining | Often more noticeable when standing | Usually does not change significantly |
| Typical Evaluation | Examination and, when needed, ultrasound | Clinical examination and imaging when required | Examination and ultrasound when indicated | Ultrasound and further tests if suspected |
The presence of a scrotal swelling does not mean that a person has a serious disease. However, self-diagnosis is not recommended because different conditions can look similar.
What Causes Hydrocele?
A hydrocele develops when excess fluid collects around the testicle. The reason varies according to age and type. The common causes of a hydrocele are as follows:
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Congenital Causes In babies, a hydrocele commonly develops because the processus vaginalis has not closed completely before or shortly after birth. This can allow abdominal fluid to move into the scrotum. Premature babies have a higher risk because the structures involved in testicular descent and closure may not have completed their development.
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Acquired Causes
Common causes due to which adult or acquired hydroceles may develop are given below:
- Infection or Inflammation: Testicle inflammation or epididymis can increase fluid accumulation around the testicle.
- Scrotal Injury: Trauma can trigger inflammation or bleeding around the testicle.
- Lymphatic Filariasis: Damage to the lymphatic system caused by filarial infection can result in chronic hydrocele.
- Testicular Conditions: Certain disorders affecting the testicle can be associated with secondary hydrocele.
- Previous Surgery: Surgery involving the groin, scrotum or testicle can occasionally be followed by a hydrocele.
- Unknown Causes: Some adult hydroceles develop without an identifiable underlying condition.
An adult with newly developed scrotal swelling should therefore undergo appropriate medical evaluation rather than assuming it is a simple hydrocele.
What are the Risk Factors for Hydrocele?
Risk factors differ between congenital and acquired hydrocele. The common risk factors are:
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Congenital Hydrocele Risk Factors
- Premature Birth: Premature infants have a greater likelihood of developing a hydrocele.
- Persistent Processus Vaginalis: An incompletely closed passage between the abdomen and scrotum can allow fluid to collect around the testicle.
- Associated Inguinal Hernia: An open processus vaginalis can also be associated with an inguinal hernia.
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Acquired Hydrocele Risk Factors
- Scrotal Injury: Trauma can cause inflammation and fluid accumulation.
- Testicular or Epididymal Infection: Infection can trigger inflammation around the testicle.
- Lymphatic Filariasis: This is particularly relevant in areas where lymphatic filariasis remains endemic.
- Previous Scrotal or Groin Surgery: Surgical procedures in the area can occasionally contribute to secondary hydrocele.
- Underlying Testicular Disease: Certain testicular conditions may cause a secondary hydrocele.
Increasing age alone should not be considered a direct cause of hydrocele. Older adults may have a greater likelihood of acquired hydrocele because the prevalence of conditions that can contribute to scrotal swelling increases with age.
What are the Complications of Hydrocele?
Most uncomplicated hydroceles are not dangerous and do not cause major health problems. Complications are more likely when the hydrocele is large, tense, associated with another disease or left untreated despite significant symptoms.
Possible complications of hydrocele include:
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Increasing Scrotal Size: A large hydrocele may become uncomfortable and interfere with everyday activities.
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Infection: Infection can cause pain, redness, warmth and fever.
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Haematocele: Blood may accumulate around the testicle, particularly after trauma.
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Pyocele: Pus may collect around the testicle in association with infection.
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Testicular Pressure: A very large or tense hydrocele may place pressure on surrounding structures and, in some cases, affect testicular function.
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Fertility Concerns: A simple hydrocele does not usually cause infertility. However, a large hydrocele or an underlying testicular condition may affect testicular function and should be assessed where fertility is a concern.
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Associated Hernia: A communicating hydrocele can occur alongside an inguinal hernia.
The most important concern with a new hydrocele-like swelling is not usually the fluid itself but the possibility of an underlying condition that has not yet been identified.
When Should I See a Healthcare Provider?
A healthcare provider should be consulted for:
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New swelling in one or both sides of the scrotum
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Gradually increasing scrotal size
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A feeling of heaviness or persistent discomfort
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Pain in the testicle or scrotum
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Redness or warmth
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Fever
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Swelling following an injury
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A firm lump within or around the testicle
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Urinary symptoms accompanying scrotal swelling
Sudden and severe testicular pain requires urgent medical assessment. Testicular torsion is an emergency because twisting of the spermatic cord can interrupt blood flow to the testicle.
How is Hydrocele Diagnosed?
Diagnosis usually begins with a medical history and physical examination. The doctor may ask when the swelling started, whether it changes in size, whether there is pain and whether there has been a recent injury, infection or surgery. The common assessments to diagnose a hydrocele are as follows:
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Medical History and Physical Examination The doctor examines the scrotum and testicles to determine the location, size, consistency and tenderness of the swelling. The groin may also be examined for an associated inguinal hernia. A hydrocele generally feels smooth and fluctuant because it contains fluid. However, physical examination alone may not always establish the cause of scrotal swelling.
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Transillumination During transillumination, a light is placed against the scrotal swelling in a darkened environment. Fluid may allow light to pass through the swelling. Although this can support the diagnosis of a hydrocele, it is not sufficient to rule out all other causes of scrotal swelling.
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Scrotal Ultrasound Scrotal ultrasound is an important investigation when the diagnosis is uncertain and is particularly useful for evaluating adult scrotal swelling. It can show the fluid collection and help assess the testicle and surrounding structures. Ultrasound can also help identify conditions such as a testicular tumour, hernia, infection or other scrotal abnormalities.
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Blood and Other Tests Blood and urine tests are not routinely required for every uncomplicated hydrocele. However, they may be recommended if an infection or another underlying condition is suspected. If there is concern about a testicular tumour, further investigations, including blood tests for tumour markers, may also be considered by the treating doctor.
Diagnostic Summary Table
| Assessment or Test | What It Assesses | When It May Be Used |
| Medical History and Examination | Nature, duration and characteristics of swelling | Initial assessment |
| Transillumination | Whether the swelling contains clear fluid | Supports clinical diagnosis |
| Scrotal Ultrasound | Fluid collection, testicular structure and associated abnormalities | Uncertain diagnosis or suspected underlying condition |
| Blood/Urine Tests | Evidence of infection or other medical conditions | When clinically indicated |
| Tumour Markers | Markers associated with certain testicular tumours | When a tumour is suspected |
How is Hydrocele Treated and Managed?
Treatment of hydrocele depends on the person's age, symptoms, hydrocele type, size and underlying cause. The common treatments for a hydrocele are:
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Observation Small, painless hydroceles may not require immediate treatment. Observation is particularly common in infants because congenital hydroceles can resolve naturally. Follow-up to monitoring to assess whether the swelling is decreasing, remaining stable or increasing may also be recommended by the doctor.
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Hydrocelectomy Hydrocelectomy is the main definitive surgical treatment for a persistent or symptomatic hydrocele. During the procedure, the surgeon drains the fluid and repairs, removes or reshapes the surrounding sac to reduce the chance of fluid accumulating again. The approach may differ depending on the type of hydrocele, the patient's age and whether an associated hernia or another condition is present.
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Aspiration Aspiration involves removing the fluid using a needle. It can temporarily reduce the size of the swelling, but the fluid commonly returns. For this reason, aspiration alone is generally not considered a definitive treatment and is not routine standard practice for most patients.
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Aspiration With Sclerotherapy During sclerotherapy, the accumulated fluid is drained and a substance designed to reduce the risk of hydrocele recurrence is injected. It may be considered for selected patients, particularly when surgery carries a higher risk. Its suitability and effectiveness depend on the individual patient, as well as the technique and sclerosing agent used.
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Treatment of Secondary Hydrocele When a hydrocele develops due to infection, inflammation, trauma or another underlying condition, that condition also needs appropriate management.
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Filarial Hydrocele Treatment When a hydrocele is associated with lymphatic filariasis, management may include treatment of active filarial infection, where indicated, together with morbidity-management measures. Antifilarial medicines do not generally reverse an established chronic hydrocele by themselves. The World Health Organization (WHO) identifies hydrocele surgery as an important component of care for people with hydrocele caused by lymphatic filariasis.
Common Medicines Used to Treat Hydrocele
There is no medicine that directly dissolves or removes the fluid sac of a simple hydrocele. Medicines are generally used when a hydrocele is associated with another condition. Some common medicines used to treat hydrocele are:
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Antifilarial Medicines: Medicines such as diethylcarbamazine may be used to treat lymphatic filariasis when clinically indicated. They do not replace surgery for an established hydrocele that requires definitive treatment.
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Antibiotics: Antibiotics may be prescribed when a bacterial infection, such as epididymitis or another appropriate infection, is diagnosed.
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Pain-Relieving Medicines: Analgesics may be recommended for discomfort associated with inflammation, injury or treatment.
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Other Medicines: Treatment depends on the underlying condition rather than the hydrocele itself.
Medicines should be taken only under the guidance of a qualified doctor. Self-medication is not recommended, particularly when scrotal pain or swelling is present.
Living With Hydrocele: Daily Challenges and Caregiving
Many people with a small and painless hydrocele can continue normal daily activities. A larger hydrocele may become more noticeable and can affect comfort, movement and quality of life. The common challenges and caregiving needs associated with a hydrocele are given below:
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Challenges
- Physical Discomfort: Large hydroceles can create heaviness, pressure or discomfort.
- Movement Difficulties: Significant swelling may make walking, sitting or exercising uncomfortable.
- Clothing-Related Discomfort: Enlarged scrotal swelling can make some clothing uncomfortable.
- Emotional Concerns: Visible swelling may cause embarrassment, anxiety or reduced confidence.
- Sexual Concerns: A large hydrocele may cause discomfort during sexual activity or affect body confidence.
- Fertility Concerns: A simple hydrocele does not usually cause infertility, but an underlying testicular condition may affect fertility.
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Caregiving and Patient Safety
- Attend Follow-Up Appointments: Follow the doctor's recommended monitoring schedule.
- Observe Changes: Note changes in swelling, pain, redness, fever or other symptoms.
- Protect the Scrotum: Avoid activities that may aggravate an existing injury or cause further trauma.
- Follow Post-Surgical Instructions: Patients who undergo hydrocelectomy should follow advice regarding wound care, activity and medication.
- Use Support When Recommended: Supportive underwear may improve comfort for some patients.
- Seek Prompt Care for Warning Signs: Sudden severe pain, rapid swelling, fever or significant redness should be assessed promptly.
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Expenses
The financial impact of a hydrocele depends on whether the condition requires only monitoring or needs investigation and surgery. Potential expenses that may be required include:
- Specialist consultation
- Scrotal ultrasound
- Laboratory tests, where required
- Medicines for an underlying infection or related condition
- Hydrocelectomy
- Anaesthesia and hospital or day-care charges
- Follow-up consultations and post-operative medicines
What is the Prognosis for Hydrocele?
The prognosis for hydrocele is generally favourable. Many congenital hydroceles in babies resolve without treatment, while persistent or symptomatic hydroceles can usually be managed effectively.
In adults, the outlook depends largely on the underlying cause. A simple hydrocele may remain stable, while a secondary hydrocele may persist until the associated condition is addressed.
Hydrocelectomy is generally an effective treatment for a persistent symptomatic hydrocele. However, as with any surgical procedure, there can be risks such as infection, bleeding, swelling, scarring and recurrence.
Early assessment is important because the same symptoms can occur with conditions that require different treatment.
How Can I Prevent Hydrocele?
Not all hydroceles can be prevented. Congenital hydrocele is related to developmental changes before or around birth, so there is no established preventive measure for parents. Some acquired hydroceles may be reduced through measures that lower the risk of their underlying causes. Some common preventive measures that may prevent a hydrocele are:
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Protect Against Scrotal Injury: Use appropriate protective equipment during contact sports or activities with a high risk of direct injury.
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Treat Infections Promptly: Seek medical attention for symptoms of testicular or epididymal infection.
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Prevent Lymphatic Filariasis: Follow public health recommendations for mass drug administration and mosquito-bite prevention.
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Maintain Follow-Up: People with known scrotal conditions should follow medical advice and attend recommended reviews.
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Do Not Ignore Persistent Swelling: Early assessment can identify an underlying condition before complications develop.
The Government of India's lymphatic filariasis programme uses mass drug administration and morbidity management measures as part of its elimination strategy. These measures help reduce transmission and manage chronic complications such as hydrocele.
Hydrocele Treatment Cost in India
The cost of hydrocele treatment in India varies according to the type of procedure, hospital, city, surgeon, anaesthesia, investigations and whether the treatment is provided as day care or requires hospital admission. The cost of hydrocele treatment in India can range from ₹20,000 to ₹1.30 lakh, depending on the type of treatment, hospital and city.
The table below presents the treatment cost of hydrocele in India:
| Treatment Component | Approximate Cost Range |
| Consultation with a urologist or a general surgeon | ₹300 - ₹2,500 |
| Scrotal ultrasonography | ₹500 - ₹2,000 |
| Blood test (tumour markers and filarial antigens) | ₹500 - ₹3,000 |
| Surgical excision of a hydrocele | ₹25,000-₹70,000 |
| Laser excision of hydrocele | ₹35,000 - ₹1,35,000, depending on technique |
| Aspiration with or without sclerotherapy | ₹5,000 - ₹20,000 |
| Medication and dressings after surgery | ₹500-₹3,000 |
| Hospitals stay (if needed) | ₹25,000 - ₹80,000 |
Note: These are indicative figures rather than fixed prices. Government hospitals may provide treatment at subsidised rates, while private hospital costs can be expensive.
The final cost may also increase when additional investigations, longer hospitalisation or treatment of an underlying infection or associated condition is required.
Does Health Insurance Cover Hydrocele in India?
Yes. In India, hydrocele treatment is covered under a comprehensive health insurance policy when the treatment is medically necessary. Here is what is usually covered:
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In-patient hospitalisation costs
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Day care treatment or surgery
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Diagnostic tests related to hydrocele during hospitalisation
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Doctor consultation and surgeon charges associated with hospitalisation
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Medicines and other medical expenses incurred during the covered hospitalisation
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Pre and post-hospitalisation expenses for a fixed period, as specified in the policy
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Outpatient tests, medicines and consultations are covered with the OPD cover
The waiting period may have to be served before a claim can be raised under the policy. It is recommended to check the policy wordings to know exactly what is covered, exclusions, waiting periods and other terms and conditions.
How Much Health Insurance Coverage is Needed for Hydrocele Treatment?
The cost of hydrocele treatment depends on the severity of the condition, the type of treatment required, the hospital and the city of treatment. Understanding the costs involved early can help with better financial planning.
The cost of hydrocele treatment in India can range from around ₹20,000 to ₹1.30 lakh, depending on the procedure, hospital and location. Hence, a health insurance cover of at least ₹10 lakh can provide a reasonable financial cushion for hydrocele-related hospitalisation, diagnostics and surgical treatment.
Individuals who want broader protection against hydrocele treatment and other medical expenses may consider a ₹15 lakh or higher sum insured.
Frequently Asked Questions (FAQs)
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Q1. What is a hydrocele?
Ans: Hydrocele is a condition in which excess fluid collects in the sac surrounding a testicle, causing swelling of the scrotum. It is usually painless and can occur in babies, children and adults. -
Q2. Is a hydrocele dangerous?
Ans: Most uncomplicated hydroceles are not dangerous. However, new or persistent scrotal swelling should be assessed because hernia, infection, testicular tumour and other conditions can cause similar symptoms. -
Q3. Can a hydrocele go away on its own?
Ans: Congenital hydrocele in babies often resolves naturally as the processus vaginalis closes and the fluid is absorbed. Persistent or symptomatic hydrocele, particularly in adults, may require medical evaluation and treatment.
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References
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https://pmc.ncbi.nlm.nih.gov/articles/PMC11455637/
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https://pmc.ncbi.nlm.nih.gov/articles/PMC11846172/
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https://www.pacehospital.com/hydrocele-symptoms-causes-types-treatment
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https://www.policybazaar.com/health-insurance/articles/new-irdai-health-insurance-guidelines-you-must-know/
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