Hydrocele, a fluid accumulation around the testis within the tunica vaginalis, is one of the most common causes of scrotal swelling in males. While frequently benign and asymptomatic, hydroceles can have broader implications for men’s reproductive health, especially in chronic or large-volume cases.
In adult males, hydroceles may develop secondary to trauma, infection, tumors, or impaired lymphatic drainage, whereas in infants, they typically arise due to a patent processus vaginalis (Singh & Dogra, 2019).
The relationship between hydrocele and male fertility, though often overlooked, is gaining clinical attention. Large or long-standing hydroceles can exert pressure on testicular structures, elevate intrascrotal temperature, and potentially disrupt spermatogenesis (Ruff, 2020).
Understanding the etiology, clinical evaluation, and evidence-based management of hydrocele is critical to improving outcomes in male reproductive health.
Diagnosis of Hydrocele
Clinical Examination
The primary diagnostic step in identifying a hydrocele is a thorough scrotal examination. Typically, hydroceles present as painless, smooth, and transilluminant scrotal swellings. Transillumination, wherein a light source is applied to the scrotum, is a key clinical maneuver.
A clear hydrocele will allow light to pass through, distinguishing it from solid or vascular masses (Elibol & Göktolga, 2021). Fluctuation in size with activity or position may also be observed.
Ultrasonographic Assessment
Scrotal ultrasound is the gold standard for confirming a hydrocele diagnosis. It allows precise evaluation of fluid volume, testicular integrity, and differential diagnosis against conditions such as varicocele, epididymal cysts, testicular torsion, and neoplasms (Sharma & Gupta, 2021). Color Doppler imaging can assess vascular flow, excluding testicular ischemia or tumor-related hydrocele.
Semen Analysis in Fertility Evaluation
In patients presenting with hydrocele alongside infertility, a semen analysis is warranted. While uncomplicated hydroceles often exert no direct impact on sperm parameters, extensive or chronic hydroceles may reduce sperm count or motility through mechanical compression or thermal stress on the testis (Ruff, 2020). Identifying such changes early is essential to timely fertility preservation interventions.
Treatment Options for Hydrocele
Conservative Management
Observation is appropriate for asymptomatic hydroceles, particularly in older adults or those with stable, non-enlarging fluid collections. Symptomatic relief can often be achieved with scrotal support garments and lifestyle adjustments (Singh & Dogra, 2019).
In neonates and infants, most hydroceles resolve spontaneously within the first two years of life, unless associated with an inguinal hernia.
Surgical Intervention: Hydrocelectomy
Surgical repair, or hydrocelectomy, remains the definitive treatment for persistent or symptomatic hydroceles. The procedure involves either excision (Jaboulay technique) or plication (Lord’s technique) of the hydrocele sac to prevent fluid reaccumulation.
Indications include discomfort, cosmetic concerns, infection risk, and fertility impact (Ruff, 2020). Open surgery is the most common approach, though minimal access techniques are gaining popularity for their reduced recovery time.
Sclerotherapy and Aspiration
For patients who are poor surgical candidates, aspiration followed by sclerotherapy is an alternative. A sclerosing agent (e.g., phenol, tetracycline) is injected post-aspiration to obliterate the sac. However, this method has a significantly higher recurrence rate and potential for inflammation or fibrosis (Sharma & Gupta, 2021), thus limiting its routine use.
Public Health Implications of Hydrocele
Hydrocele carries a considerable public health burden, particularly in tropical and subtropical regions. In endemic zones, it is frequently associated with lymphatic filariasis—an infection caused by Wuchereria bancrofti that obstructs lymphatic drainage and leads to massive scrotal swelling.
According to the World Health Organization (2021), hydrocele represents one of the leading causes of genital disfigurement among men in sub-Saharan Africa and parts of Asia, often resulting in social stigma, loss of income, and depression.
Beyond infectious etiology, hydrocele may conceal serious underlying pathologies such as testicular cancer or chronic orchitis. Delayed or missed diagnosis could result in adverse reproductive or oncologic outcomes.
Therefore, raising awareness, promoting early detection, and integrating hydrocele management into men’s health strategies are imperative.
Patient education, improved access to urological care, and health-system strengthening are central to reducing hydrocele-related morbidity—particularly in underserved populations.
Conclusion
Hydrocele is a frequently encountered, yet often underestimated, condition with potential consequences for male fertility and psychosocial well-being. Although many cases are benign, complications may arise if hydroceles are ignored or inadequately managed.
A structured diagnostic approach using clinical assessment and ultrasonography ensures accurate identification and appropriate differentiation from other scrotal pathologies.
Treatment should be individualized, with hydrocelectomy offering a curative solution for symptomatic cases. Understanding the broader epidemiological context, including the burden of filarial hydrocele, further highlights the importance of proactive care in improving men’s reproductive health outcomes.
References
- Elibol, F., & Göktolga, U. (2021). The diagnostic role of ultrasonography in adult and pediatric hydroceles. Turkish Journal of Urology, 47(3), 210–215. https://doi.org/10.5152/tud.2021.21056
- Ruff, T. R. (2020). Evaluation and management of hydroceles in adults. American Family Physician, 101(4), 230–236. https://www.aafp.org/pubs/afp/issues/2020/0215/p230.html
- Sharma, R., & Gupta, N. (2021). A comparative study between sclerotherapy and surgery for primary hydrocele. International Surgery Journal, 8(9), 2704–2708. https://doi.org/10.18203/2349-2902.isj20213438
- Singh, I., & Dogra, P. N. (2019). Management of hydrocele: Clinical guidelines for primary care. Journal of Clinical Urology, 12(1), 7–13. https://doi.org/10.1177/2051415818765592
- World Health Organization. (2021). Lymphatic filariasis: Managing hydrocele and lymphoedema. Retrieved from https://www.who.int/activities/managing-hydrocele-and-lymphoedema
