What is Pediatric Hydrocele (Water Hernia)?
Pediatric hydrocele is the swelling of the scrotum caused by the accumulation of excess fluid between the layers of membrane surrounding the testicles. During fetal development, as the testicles descend from the abdomen into the scrotum, they drag a fold of the peritoneum (processus vaginalis) with them. Normally, this passage closes before or shortly after birth. If the passage remains open, peritoneal fluid leaks into the scrotum, resulting in a hydrocele.
Types of Hydrocele in Children
Pediatric hydrocele cases are classified into two main categories based on their connection with the abdominal cavity:
- Communicating Hydrocele: The passage between the abdomen and scrotum remains completely open. Fluid flows freely, causing the swelling to fluctuate in size throughout the day, typically increasing with activity or crying. It is often associated with inguinal hernia.
- Non-communicating Hydrocele: The upper portion of the passage closes, trapping fluid in the scrotum. The size of the swelling remains constant and often resolves spontaneously over time.
Symptoms and Diagnosis
The primary symptom is a painless swelling in one or both sides of the scrotum. In communicating hydroceles, the swelling may appear smaller in the morning and enlarge later in the day due to physical activity. Physical examination is the primary diagnostic method. Transillumination (shining a light through the scrotum in a dark room) helps confirm fluid presence. Scrotal ultrasonography (US) is also utilized to evaluate the testicles and rule out other conditions.
How is Pediatric Hydrocele Surgery (Hydrocelectomy) Performed?
Unlike adult hydrocele surgery, pediatric hydrocelectomy is performed through an inguinal (groin) incision. Under general anesthesia, a procedure called high ligation is carried out. A small incision is made in the groin, the patent processus vaginalis is identified, separated from surrounding tissues, and ligated to close the connection with the abdominal cavity. The accumulated fluid is drained. This is a day-surgery procedure, allowing the child to return home on the same day.
Timing of Surgical Intervention
Most congenital hydroceles in infants resolve spontaneously within the first year of life. Therefore, unless accompanied by a significant inguinal hernia, children are monitored without surgery until 1.5 to 2 years of age. However, surgical treatment is indicated if the hydrocele persists beyond two years of age, fluctuates significantly in size, or is associated with a hernia.
Postoperative Recovery and Care
To ensure a smooth recovery after surgery, the following guidelines should be observed:
- The incision is typically closed with absorbable sutures, eliminating the need for suture removal.
- Mild swelling and discoloration in the groin and scrotum are normal during the first few days.
- The child should avoid strenuous physical activities, running, and straddling toys (like bicycles) for the first week.
- Prescribed pain relief medications should be administered as directed, and proper hygiene of the wound area must be maintained.