When Should a Hernia Be Repaired?

The spectrum of urgency

Not all hernias are equally urgent. Some need emergency surgery right now. Others can be planned as a routine procedure at a time that suits you. And some can reasonably be watched for a period, with close review. The important question is: which category does your hernia fall into?

The answer depends on several things: the type of hernia, what symptoms you are having, its size, whether it can be pushed back in (reducible), and your overall health.

Emergency repair: when hernia surgery cannot wait

Emergency hernia surgery carries significantly higher risks than a planned elective repair. If the trapped bowel has been without blood supply for too long, a portion of it may need to be removed. Hospital stays are longer, infection rates are higher, and the chance of the hernia coming back is greater. This is one of the most important reasons to get a hernia assessed and repaired electively while things are still straightforward — rather than waiting until a crisis forces an emergency operation.

Incarcerated hernias — where the hernia cannot be pushed back in but the blood supply has not yet been cut off — are not an immediate emergency, but they need urgent surgical assessment the same day. They have a high risk of progressing to strangulation within hours.

Prompt repair: femoral hernias and large hernias

All femoral hernias

Femoral hernias sit in a different location from groin hernias — they pass through a narrow passage just below the groin crease. They carry a lifetime risk of becoming dangerously trapped of around 40%. Even a small femoral hernia that is causing no symptoms at all can strangulate without much warning. All femoral hernias should be repaired promptly once they are diagnosed, regardless of whether they are causing you symptoms. Watchful waiting is not appropriate for this type of hernia.

Large inguinal hernias

Large hernias — particularly those that have been left to grow over many years — are substantially more complex to repair than smaller ones. The gap is wider, more bowel may be involved, scar tissue may have built up inside the sac, and the abdominal wall may have stretched and weakened around the defect. Repairing a large hernia electively is far safer and more straightforward than doing it as an emergency. If you have a large hernia that has not been causing significant symptoms, it is still worth discussing prompt repair with your surgeon rather than simply continuing to watch it.

Elective repair recommended: symptomatic hernias

Any hernia that is causing symptoms — aching, dragging, pain with activity, difficulty doing daily tasks, scrotal swelling — is generally recommended for elective repair. Symptoms mean the hernia is affecting your quality of life, and they are very unlikely to resolve on their own. They almost always worsen over time.

Symptoms that are signs you should not keep putting surgery off:

• Aching or heaviness in the groin after standing or activity that limits what you can do
• Sharp pain when you cough, sneeze, or lift
• You cannot do physical work or exercise comfortably
• The hernia is increasingly difficult to push back in
• Swelling extending into the scrotum
• The hernia is visibly getting bigger over time

Shared decision: asymptomatic groin hernias

For small groin hernias in men that are causing absolutely no symptoms, international guidelines do allow a "watch and wait" approach. The annual risk of strangulation in this group is relatively low (around 0.3–0.5% per year), and two well-run clinical trials showed that short-term monitoring is safe.

However, the same evidence shows that the majority of men who chose to watch and wait developed symptoms within 2–5 years and needed surgery anyway. The argument for watchful waiting is not that it avoids surgery — it almost never does. It simply means delaying surgery until the hernia starts causing trouble.

For most fit, younger patients, there is a genuine case for early elective repair — before the hernia gets larger, before symptoms appear, and at a time when recovery is fastest and the repair is most straightforward. This is worth discussing honestly with your surgeon, based on your individual circumstances.

Deciding when to have hernia surgery: a step-by-step approach

When surgery may reasonably be deferred

Putting surgery off is appropriate in a limited set of circumstances:

• Significant health conditions that make the risks of surgery and anaesthesia genuinely greater than the risk of the hernia complications — this is something to assess individually with your surgeon
• A serious illness with a limited life expectancy, where the burden of surgery and recovery outweighs the benefit
• A small, truly symptom-free groin hernia in a man who makes a fully informed decision to wait, with a clear agreement to return promptly if anything changes

Deferral should always come with a clear plan: a specific set of symptoms or changes that would prompt you to come back for reassessment, and a scheduled review date. It should not mean simply putting the hernia out of mind indefinitely.

The impact of delay on surgical complexity

Surgeons consistently find that hernias repaired earlier are technically easier to fix. A small-to-medium groin hernia in a younger, otherwise healthy person is a straightforward, low-risk operation. The same hernia in the same person ten years later — now larger, with bowel stuck inside the sac, possibly having been partially trapped on previous occasions — is a more demanding repair with a higher chance of complications and a higher recurrence rate. The cumulative risk of strangulation also increases with every year of watchful waiting.

This does not mean every symptom-free hernia needs urgent repair. But it does mean that the strategy of simply ignoring a hernia and hoping it stays the same is not without real consequences over time.

Frequently asked questions