Can Exercise Cause a Hernia?

The short answer

Exercise does not cause hernias in people whose abdominal wall is structurally sound. For a hernia to develop, there needs to be a weakness or gap in the wall already — whether you were born with it, whether it developed with age, or whether a previous surgery left a vulnerable spot. Exercise, and especially heavy lifting, can be the moment that reveals this hidden weakness — but it is rarely the original cause.

Think of it like a worn tyre blowing out on a speed bump. The speed bump did not cause the blowout — the worn tyre did. The bump was simply the thing that exposed a weakness that was already there. The same is true for your abdominal wall.

How exercise and hernias are related

The connection comes down to pressure inside the abdomen (called intra-abdominal pressure). When you lift, strain, or push hard during exercise, that internal pressure rises sharply. A healthy abdominal wall handles this without any trouble. But if there is a weak spot — especially in the groin, where the wall is naturally a bit thinner — that pressure can push tissue through the gap and create or worsen a hernia.

Several exercise-related factors can trigger a hernia appearing:

• Holding your breath and straining (the Valsalva manoeuvre) — this is commonly done during very heavy lifts and produces the biggest pressure spike
• Jumping up in training load too quickly — rapidly increasing your lifting weight or volume without enough time to adapt
• Poor lifting technique — especially in big movements like squats, deadlifts, and overhead press
• Repeated heavy straining over time — whether from intense training or physical work done day after day

Activities most associated with hernia appearance

Heavy barbell training

Squats and deadlifts are the exercises that patients most often associate with the moment their hernia first appeared. These movements involve the most whole-body effort and the highest sustained abdominal pressure of any exercise. They do not cause hernias in a healthy abdominal wall — but they are very good at revealing a groin weakness that may have been quietly sitting there for years.

Contact sport

Rugby, AFL, and similar contact sports involve explosive movements, collisions, and heavy loading of the core. Athletes in these sports show up with hernias more often than the general population, particularly groin hernias and athletic pubalgia (sometimes called a "sports hernia").

Chronic cough

This one surprises people: a persistent cough — including exercise-induced asthma — is one of the most reliable triggers for groin hernia development. Every single cough produces a sharp pressure spike inside the abdomen. If you are coughing dozens of times a day, you are effectively doing hundreds of high-force abdominal contractions, which can gradually stretch and weaken a spot that was already vulnerable.

Running and endurance sport

Distance running creates lower internal pressure than lifting does, but it applies repeated load over a long time. It can irritate a hernia that is already there and make your symptoms more noticeable — especially if the hernia is in your groin.

What actually causes hernias

The real underlying causes of groin hernias are structural — they have very little to do with exercise:

• A weakness you were born with — in men, a small channel in the groin (called the processus vaginalis) through which the testicle descended sometimes does not close fully, leaving a natural predisposition to a hernia. This can sit undetected for decades.
• Ageing — the tissue of your abdominal wall naturally loses its strength and elasticity as you get older, making the groin floor progressively weaker over time
• Previous abdominal surgery — any operation in the lower abdomen can alter the anatomy and leave areas that are less strong
• Connective tissue conditions — conditions that affect how your body makes collagen (the building material of strong tissue) increase your hernia risk throughout the body
• Being significantly overweight — excess body fat keeps pressure inside the abdomen constantly elevated
• Chronic straining — ongoing constipation, difficulty passing urine, or a persistent cough all create repeated pressure spikes that add up over time

Can I exercise if I already have a hernia?

This is one of the questions we hear most often before surgery — and it is a completely reasonable thing to wonder. The answer depends on the hernia and the person. Generally:

• Light to moderate exercise — walking, swimming, cycling — is well tolerated with most hernias and does not make them significantly worse
• Heavy lifting and high-effort exercises that push up abdominal pressure sharply should be treated with caution and discussed with your surgeon first
• If exercise makes the hernia bulge more noticeably or causes real pain, that is a sign that repair should not be put off

Continuing to exercise with an unrepaired hernia carries an ongoing risk that it could become trapped — particularly during very high-effort activities. Your surgeon can help you work out what is and is not safe for your specific situation.

Breathing technique and hernia risk

How you breathe during exercise matters more than most people realise. When you hold your breath, squeeze your core hard, and push — a technique known as the Valsalva manoeuvre — the pressure inside your abdomen spikes sharply. Powerlifters use it deliberately to protect their spine during maximum-effort lifts, and it works well for that purpose. But it also puts the greatest possible stress on any weak spots in your abdominal wall.

For most people exercising at the gym, the simpler habit of breathing out as you exert yourself — exhaling on the push, the lift, or the pull — is enough to keep your core stable while keeping those pressure spikes lower. It will not guarantee that a hernia never appears, but it is a sensible habit that reduces the strain on your abdominal wall during every rep.

Sports hernias: a different entity

You may have heard the term "sports hernia" and wondered if that is what you have. It is worth knowing that a sports hernia is actually a different condition from a true hernia. The medical name for it is athletic pubalgia — it involves strain or tearing of the muscles and tendons that attach around the pubic bone (especially the inner thigh muscles and the lower abdominal tendon). Nothing actually pokes through a gap in the wall, which is why it is not technically a hernia at all.

If you have athletic pubalgia, you will likely feel groin pain during sport — but you will not see a visible bulge. Physiotherapy is the usual first step, and some people do need surgery to repair the torn tissue. It is most common in football, hockey, and soccer players.

It is also possible to have both conditions at the same time — a real inguinal hernia alongside athletic pubalgia. Telling them apart requires a careful examination by a surgeon who sees a lot of groin conditions, because the treatment for each is quite different.

After hernia repair: return to exercise

Surgery does not mean giving up your active life — and we want to reassure you of that. Most people who were exercising before their hernia repair do return to everything they were doing before, including heavy lifting, contact sport, and high-intensity training. The key is not rushing the timeline and giving the repair enough time to settle properly.

If you had keyhole (laparoscopic) repair, you will generally be able to get back to full exercise faster than with open surgery. For most people, returning to heavy lifting and intense activity happens around 8–12 weeks. Your surgeon will give you a personal timeline based on how your repair went and what you want to get back to doing.

Frequently asked questions