Symptoms and causes

What is it?

Normally, the testicles are surrounded by two membranes between which there is only a tiny layer of fluid. When more fluid accumulates between these two membranes, this is called a hydrocoele. This is a benign fluid-filled swelling around the testicle.

It is a frequently occurring condition, usually without an identifiable cause. Treatment is not always required.

Diagnosis and treatment

The testicle and epidymis are released through a small skin incision in the scrotal pouch. The testicle is examined for abnormalities. The fluid is removed and the outer membrane is folded down so that the fluid can no longer accumulate. The skin is sutured with self-dissolving threads.


In the beginning, the testicle will feel even bigger and firmer. Often (red, blue) skin discoloration of the scrotum also occurs. These symptoms will slowly disappear. You may take a shower the day after the operation.

The testicles are best supported with a bandage for one week. For the first week after surgery, it is a good idea to take it easy: do not use a bicycle, exercise or do any heavy lifting.

Treatment centres and specialisations

Urology Centre

Latest publication date: 25/01/2021
Supervising author: Dr Ameye Filip