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Hydrocele Surgery — what you should know in 2026
A plain-English guide to repairing a fluid-filled swelling around the testicle, when surgery is needed, the technique, and a straightforward recovery.
Written by our medical board, reviewed quarterlyUpdated 21 January 19706 min read
What a hydrocele is and when to treat it
A hydrocele is a build-up of fluid in the sac that surrounds the testicle, causing a soft, usually painless swelling of the scrotum. It is common, often harmless, and in adults frequently has no clear cause, though it can follow injury, infection or inflammation. Many small hydroceles need no treatment at all.
Surgery is considered when the swelling becomes large, heavy or uncomfortable, interferes with daily life, or when there is uncertainty about what is causing it. An ultrasound is usually done first to confirm it is simply fluid and to rule out other causes of scrotal swelling.
Because a new scrotal swelling can occasionally signal something more serious, it should always be assessed properly rather than simply operated on. A good clinic will confirm the diagnosis before recommending surgery.
How the operation works
The standard treatment is a hydrocelectomy, a day-case operation usually done under general or spinal anaesthesia. Through a small incision in the scrotum or groin, the surgeon drains the fluid and then either removes or folds back the sac so that fluid does not simply re-accumulate, which is the key to a durable result.
Simply draining the fluid with a needle (aspiration) is quick but the fluid usually comes back, so it is generally reserved for men unfit for surgery or used with an injected agent to reduce recurrence. Definitive surgery addresses the sac itself.
The operation is short and well-established. The main technical goal is to deal with the sac correctly so the hydrocele does not return, and to control the small blood vessels to limit post-operative swelling and bruising.
Cost and what is included
Hydrocele surgery is one of the more affordable procedures patients travel for. A package typically covers the surgeon, anaesthesia, the day-case facility, dressings and a follow-up check before you fly home. An overnight stay is rarely needed.
At major medical-tourism centres it commonly falls in the low hundreds to low thousands of euros, typically well below comparable private fees in higher-cost countries. The diagnostic ultrasound, if not already done, may be an additional item.
Confirm whether the price includes the follow-up review and treatment of any minor complication such as a small collection of blood or a wound infection. For such a routine operation these are the main items that occasionally add to the cost.
Choosing a clinic
Even for a routine operation, choose a board-certified urologist or general surgeon who performs scrotal surgery regularly, and a clinic with recognised accreditation such as JCI, TEMOS or ISO 9001 for reliable sterilisation and anaesthesia standards.
Ask that an ultrasound has confirmed the diagnosis before surgery, and that the surgeon plans to treat the sac definitively rather than simply drain the fluid, since drainage alone tends to recur. Ask what recurrence and complication rates the clinic quotes.
A good clinic will be clear about whether your hydrocele actually needs surgery, since many do not, and will discuss the realistic, modest goals of the operation: removing the swelling and discomfort, with a low chance of recurrence.
Recovery and timeline
Recovery is usually quick and straightforward. Expect scrotal swelling, bruising and aching for one to two weeks — and the scrotum can look swollen for a little longer as the tissues settle. Supportive underwear, ice and simple pain relief make this period much more comfortable.
Most men take a few days off work and avoid heavy lifting, cycling and vigorous exercise for around two to four weeks. A small dressing and dissolvable stitches are typical, and good hygiene helps healing. You can usually fly home within a few days.
Full settling of the swelling can take several weeks, so the final result is not immediate. Sexual activity is usually resumed at around two to four weeks, on your surgeon's advice.
Risks and what to watch for
Hydrocele surgery is low-risk, but recognised issues include a collection of blood in the scrotum (haematoma), infection, persistent swelling, and recurrence of the hydrocele, which is uncommon after proper sac surgery. Very rarely there can be injury to nearby structures.
Most complications are minor and settle with simple care. Warning signs that need attention include increasing pain, spreading redness, pus, a fever, or a rapidly enlarging, tense swelling.
Before travelling, agree what the clinic will do if a problem appears after you fly home, and keep your home doctor informed so they can manage simple aftercare. Even for a routine operation, planning for the rare complication — and considering medical-travel insurance — is sensible.
Frequently asked
Does a hydrocele always need surgery?
No. Many are small, painless and harmless and need no treatment. Surgery is considered when the swelling is large, heavy, uncomfortable or the cause is uncertain.
Can the fluid just be drained instead?
Draining with a needle is quick but the fluid usually returns, so definitive surgery on the sac is preferred for a lasting result, except in men unfit for an operation.
How long is recovery?
Most men take a few days off work and avoid heavy lifting for two to four weeks. Swelling and bruising settle over one to two weeks, sometimes a little longer.
How soon can I fly home?
Usually within a few days, since it is a day-case operation. Wear supportive underwear and follow aftercare advice during travel.
Will the hydrocele come back?
Recurrence is uncommon after proper surgery on the sac, though more likely after simple drainage. Ask your surgeon what recurrence rate they quote.
Should the swelling be checked before surgery?
Yes. An ultrasound should confirm it is simply fluid and rule out other causes of scrotal swelling before any operation is planned.