What Is an Inguinal Hernia?

An inguinal hernia occurs when a weakness or opening develops in the inguinal canal, a passage located in the lower abdominal wall near the groin. This allows abdominal tissue, such as fat or part of the intestine, to push through, forming a visible lump. The bulge may become more noticeable when you cough, strain or lift heavy objects.

The inguinal canal plays different roles in men and women. In men, it allows structures such as the spermatic cord to pass into the scrotum. In women, it contains a ligament that helps support the uterus. As this region is naturally less reinforced than other parts of the abdominal wall, it is more prone to developing hernias.

Types of Inguinal Hernia

Inguinal hernias are broadly grouped based on how they develop and where the tissue protrudes.

1. Indirect Inguinal Hernia

This is the more common type and is linked to a small opening that remains from birth. During development in the womb, the inguinal canal is meant to close fully. When it does not, it leaves a pathway through which tissue can later slip. While the opening exists from birth, symptoms may only appear years later.

2. Direct Inguinal Hernia

Direct inguinal hernias develop gradually over time due to weakening of the abdominal muscles. Instead of passing through the inguinal canal, the tissue pushes directly through the abdominal wall. Direct hernias are more frequently seen in men, particularly as they age.

Who Can Get an Inguinal Hernia?

Although inguinal hernias can affect anyone, certain factors increase the likelihood of developing one. These include:

• A personal or family history of hernias
• Persistent coughing, often linked to smoking or chronic lung conditions
• Chronic constipation and frequent straining
• Repetitive or heavy lifting
• Pregnancy or premature birth
• Previous abdominal surgery or hernia repair

Symptoms of Inguinal Hernia

Some inguinal hernias are discovered incidentally during a routine examination. However, many people notice clear physical changes or discomfort.

Common symptoms include:

• A visible bulge on either side of the groin
• A dull ache or discomfort, especially during activity
• A feeling of heaviness or pressure in the groin
• A dragging sensation after standing for long periods
• Pain or swelling around the testicles if the hernia extends into the scrotum

In infants and young children, the bulge may only appear when they cry, cough or strain, which can make it less obvious at first glance.

Can an Inguinal Hernia Become Urgent?

While many hernias develop gradually, complications can arise if the protruding tissue becomes trapped. This is known as incarceration. If blood flow to the trapped tissue is reduced or cut off, it can progress to strangulation, which is a medical emergency.

Without timely treatment, the affected tissue can become severely damaged. It is important to seek urgent care if you notice:

• A bulge that suddenly becomes firm or difficult to push back
• Nausea, vomiting or fever
• Sudden and worsening pain
• Discolouration of the bulge, such as redness or a darker shade
• Difficulty passing stools or gas

How Is an Inguinal Hernia Diagnosed and Treated?

If you suspect you have a hernia, seeing a doctor early can make all the difference. A proper assessment will help confirm the diagnosis and guide the next steps.

Diagnosis

In many cases, a doctor can diagnose an inguinal hernia through a physical examination. You may be asked to cough or strain gently, as this increases pressure in the abdomen and makes the bulge easier to detect.

When the diagnosis is less straightforward, imaging may be recommended. Ultrasound is often the first step as it is safe and effective for soft tissue assessment. In selected cases, a CT scan or MRI may be used to gain a clearer picture.

Treatment

There are several approaches to managing an inguinal hernia, and the most suitable option depends on the size of the hernia, the severity of symptoms and overall health.

• Watchful Waiting: For small hernias that cause little or no discomfort, careful monitoring may be recommended. This involves regular follow-up to check that the hernia is not increasing in size or leading to complications.
• Symptom Management: You may be advised on ways to reduce strain, such as adjusting daily activities. A supportive truss can sometimes ease discomfort, though it does not treat the underlying issue and should only be used with medical guidance.
• Surgical Repair: Surgery is generally recommended for hernias that cause pain, restrict daily activities or continue to enlarge. Options include open repair and minimally invasive techniques such as laparoscopic or robotic surgery. Your doctor will recommend the most suitable approach based on your condition.

Timely Medical Care for a Suspected Hernia

Not every groin discomfort signals a serious problem, but it is always better to be certain. Addressing a hernia early can help you avoid complications and return to your usual routine with greater peace of mind. 

If you have noticed a persistent lump or discomfort in your groin, consider reaching out to the team at HKS Hernia Clinic for a professional assessment. Under the care of Dr Ho Kok Sun, you will receive a clear diagnosis and a personalised treatment plan to help you move forward with confidence and comfort. Schedule a consultation today.

Meet Our Colorectal Surgeon in Singapore

Dr Ho Kok Sun has been committed to treating colorectal cancer through minimally invasive surgical techniques for over two decades. Dr Ho was previously President of the ASEAN Society of Colorectal Surgeons and the Society of Colorectal Surgeons (Singapore), as well as a founding member of the Eurasian Colorectal Technologies Association. Dr Ho was actively involved in the training of medical students and residents and has published widely in reputable journals and book chapters. He believes that treatment should always be personalised to the patient’s needs.