Hernia Symptoms and When Surgery Is Needed

What is a hernia

A hernia happens when an organ or fatty tissue pushes through a weak spot or opening in the muscle or tissue that normally holds it in place. Most hernias involve an abdominal organ pushing through one of the walls of the abdominal cavity.

This can create a visible bulge where interior tissue presses outward through a tear or gap in a muscle or tissue wall.

Common types seen in the abdomen and groin include inguinal hernias, which occur when tissue pushes through a weak spot in the lower abdominal wall, often creating a bulge in the groin area. Inguinal hernias affect around 25% of all men. Umbilical hernias appear near the belly button and are common in newborns, occurring in about 15% of infants.

Incisional hernias develop at the site of a previous surgical cut and make up about 10% of hernias. Femoral hernias occur lower in the groin and are more common in women. Hiatal hernias happen when part of the stomach pushes up through the diaphragm into the chest.

A weakness or opening can be present at birth, but it usually develops during a person's lifetime. Years of pressure or exertion from heavy lifting, chronic coughing, or straining can wear the tissue down. A traumatic injury or previous surgery can also cause a hernia. Hernias do not heal on their own, and the opening usually gets larger over time. Conservative treatments such as trusses or compression garments do not fix the underlying defect.

Common symptoms of a hernia

The most telltale sign is a visible lump or bulge that appears during certain activities or positions and goes back in at other times. It may look like an odd bulge that comes and goes when you are straining, lifting, laughing, or coughing.

The bulge often becomes more noticeable when:

• Standing
• Coughing
• Lifting
• Straining

When you can see it, it looks like a bulge where you should not have one, typically in the abdomen or at the top of the inner thigh.

You may feel pressure, a dull ache, or a pinching sensation when the hernia comes out. Some people notice discomfort, pressure, or a pulling sensation, while others may only see a visible lump. You may not feel it at all, or you may feel pressure, a dull ache, or a sharp pain when the hernia comes through the opening.

A hiatal hernia may cause chronic acid reflux, felt as heartburn or indigestion. In a baby, you may see a hernia emerge when they are crying or passing stool, and they may be irritable.

More than one-third of inguinal hernias are asymptomatic. A groin hernia can sometimes slip down into the scrotum, causing visible swelling in people with testicles. Femoral hernias may cause invisible, unexplained groin pain. If the same activity routinely causes the same symptoms, it is likely a hernia. Any hernia pain is worth a visit to your healthcare provider.

Warning signs that need urgent care

A hernia becomes serious when it gets stuck in the hole it has pushed through and cannot go back in. This is called incarceration. An incarcerated hernia can become increasingly painful and serious. If it is your bowel that is stuck, your bowel may develop an obstruction that makes it unable to pass food or gas.

If the trapped tissue does not have access to blood supply, known as strangulation, it can lead to tissue death (necrosis or gangrene).

Seek medical attention right away if your hernia:

• Changes colour
• Goes numb
• Causes symptoms like fever, nausea, and vomiting

Sudden intense pain, vomiting, fever, or a trapped bulge should be treated as urgent. These symptoms may suggest incarceration or strangulation, which requires immediate medical attention. Nausea, vomiting, or sudden severe pain are signs that it may be time to discuss surgery urgently. A hernia that becomes firm, tender, or cannot be pushed back in is a red flag.

The most serious consequence of waiting is the chance of incarceration or strangulation. Research shows that emergency hernia repair is associated with significantly higher complication rates, longer hospital stays, and a greater likelihood of bowel resection compared to elective surgery. In studies, the rate of acute hernia-related operations was low (2-3%), but the risk rises as the hernia grows.

Watchful waiting is not the same as ignoring the problem; it requires regular medical guidance and a clear understanding of these warning signs.

When watchful waiting may be an option

Watchful waiting means your surgeon monitors the hernia instead of repairing it right away. It can be a reasonable option for men with inguinal hernias that cause few or no symptoms. Current guidance indicates that watchful waiting is generally considered for selected people whose hernia causes no symptoms or only minimal symptoms, particularly men with an inguinal hernia.

If the lump is easily reducible, meaning it can move back into the abdomen, and there are no concerning symptoms, immediate surgery may not always be necessary.

Studies justify watchful waiting as a reasonable alternative compared with surgery in men aged 50 years and older. It is a viable management strategy for asymptomatic and mildly symptomatic inguinal hernias. The decision should be guided by shared decision-making, considering your values, symptom burden, other health conditions, and life expectancy.

One advantage is that you avoid an operation and its potential complications at a time when the hernia is not significantly affecting your life.

However, watchful waiting requires regular medical guidance and a clear understanding of warning signs. You may be advised to adjust your habits or the nature of your work to avoid straining the hernia. In some cases, a special restraining belt may be recommended to hold it in during certain activities.

They can be left untreated initially, but need to be monitored properly. Long-term data show that approximately 50% of patients cross over to surgery within five years, and this proportion exceeds 96% by 12 years. Most hernias eventually will need surgical repair.

When surgery is usually recommended

Surgery is usually recommended when a hernia causes symptoms that affect your daily life or when there is a risk of serious complications. Your surgeon may advise repair if you have persistent pain or discomfort that interferes with work, exercise, or sleep.

A bulge that grows larger over time or becomes difficult to push back in also suggests the need for surgery. In studies of men with inguinal hernias managed by watchful waiting, approximately 50% crossed over to surgery within five years, most often because of increasing pain.

Emergency repair carries higher complication rates, longer hospital stays, and a greater chance of bowel resection compared with planned surgery. For this reason, your surgical team will usually suggest scheduling repair before the hernia becomes urgent. The decision is always guided by your symptoms, the type of hernia, and your overall health.

Special considerations for children and umbilical hernias

Umbilical hernias in babies are common and often close on their own as the child grows. If the hernia has not closed by the time the child reaches early childhood, surgical repair is usually needed. Inguinal hernias in children do not go away on their own and surgery is always recommended to prevent complications.

In adults, an umbilical or paraumbilical hernia will not close without surgery and may enlarge over time. A hernia that appears at the site of a previous abdominal incision (incisional hernia) also requires repair if it causes symptoms or grows larger.

Your surgeon will assess the size of the defect and the child's or adult's general health before deciding on the timing and technique of repair.

How a hernia is diagnosed

A hernia is usually diagnosed by a simple physical examination in the OPD. The surgeon will look and feel for a bulge in the groin, abdomen, or at the site of a previous scar, and may ask you to cough or strain to make the hernia appear.

They will also check whether the lump can be pushed back into the abdomen (reducible) or if it is stuck (irreducible). In some cases, especially if the hernia is small, deep, or the diagnosis is uncertain, imaging such as an ultrasound or CT scan may be requested. Ultrasound has a positive predictive value of about 85% for detecting inguinal hernias.

Not every lump in the groin or abdomen is a hernia; conditions such as lipoma, hydrocele, or enlarged lymph nodes can feel similar. A proper evaluation by a qualified surgeon helps confirm the diagnosis and plan the right treatment.

What to ask your surgeon at the consultation

When you meet your surgeon, it helps to have a list of questions ready. You can ask what type of hernia you have and whether it is reducible or at risk of becoming stuck. Ask whether surgery is recommended now or if watchful waiting is a reasonable option for you.

If surgery is advised, ask which approach — open or keyhole (laparoscopic) — is suitable for your hernia and why. You may also want to know whether mesh will be used and what the benefits and risks are.

Ask about the expected recovery time, when you can return to work and lift heavy objects, and what restrictions you should follow after the operation. It is also sensible to discuss the typical cost range for the procedure and what factors might change the final bill. Finally, ask how often you will be seen for follow-up and what warning signs should bring you back sooner.