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Health condition · Clinically reviewed

Inguinal hernia, from a quiet groin lump to a considered repair.

The most common hernia - and one of the most fixable. This guide walks through the two types, the warning signs that mean same-day care, and how UK hernia surgeons choose between open and keyhole repair.

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Why trust this guide

  • 01

    Clinically reviewed

    Written by our editorial team and reviewed by a UK-registered general or hernia surgeon before publication.

  • 02

    Sourced from guidance

    Checked against NICE, the British Hernia Society and international consensus statements you can see at the end.

  • 03

    Current for 2026

    Reflects modern UK practice, including Lichtenstein open mesh repair, laparoscopic TEP and TAPP, robotic repair and the role of watchful waiting.

Key facts

Inguinal hernia at a glance.

The essentials, in plain English - what it is, the two types, who gets it, and the sign that means dropping everything and heading to A&E.

  • What it is

    A protrusion of abdominal contents (usually fat or bowel) through the inguinal canal in the groin - the most common hernia by a wide margin.

  • Types

    Indirect (around 65%) follows the spermatic cord and can extend into the scrotum. Direct (around 35%) pushes through Hesselbach triangle and rarely reaches the scrotum.

  • Who gets it

    Predominantly men - male-to-female ratio around 9 to 1. Risk rises with age, chronic cough, constipation, heavy lifting and prostatism.

  • Classic sign

    A soft, painless groin lump that appears on standing or straining and reduces when lying down - often with a cough impulse.

  • Serious complications

    Incarceration (irreducible), obstruction and strangulation (ischaemic bowel) - a surgical emergency needing urgent specialist care.

  • Definitive treatment

    Surgical repair - open Lichtenstein mesh or laparoscopic TEP/TAPP. Watchful waiting is reasonable for minimally symptomatic men.

Why this guide matters

A common problem with clear choices.

Around a quarter of men develop an inguinal hernia in their lifetime. Three points shape everything else on this page.

  • Type changes the story

    Indirect hernias are congenital and can reach the scrotum. Direct hernias are acquired and stay in the groin. Both are managed surgically, but the anatomy shapes the operation.

  • Emergency features aren’t subtle

    Strangulation is painful, tense and unmistakable - and needs A&E, not a routine appointment. Recognising it fast is the single most important thing this guide can do.

  • Repair techniques all work

    Open Lichtenstein, laparoscopic TEP and TAPP, and robotic-assisted repair are all valid. The right one depends on the hernia, your surgeon, and your priorities for recovery.

How the diagnosis is made

From a lump in the groin to a planned repair.

The steps a UK GP or hernia surgeon will normally follow, in order - so you know what to expect and why.

  1. 01

    Assessing

    History and red flag screen

    When the lump appeared, whether it reduces, any pain, changes in bowel habit, and features that suggest obstruction or strangulation.

  2. 02

    Assessing

    Standing and lying examination

    A specialist examines the groin standing and lying - checking reducibility, cough impulse, size and whether the hernia extends into the scrotum.

  3. 03

    Assessing

    Testicular and scrotal check

    Differentiates a hernia from a hydrocele, varicocele or testicular lump - the transilluminating hydrocele and the reducible hernia feel very different.

  4. 04

    Confirming

    Ultrasound of the groin

    Selectively arranged when the diagnosis is uncertain, or in women where femoral hernia must be excluded - a specialist-commissioned scan.

  5. 05

    Confirming

    CT abdomen and pelvis

    Reserved for occult, complex, recurrent or bilateral hernias - a specialist decision, not a routine investigation.

  6. 06

    Preparing

    Surgical opinion and shared plan

    A hernia surgeon weighs symptoms, occupation, age and fitness for anaesthesia before recommending repair or watchful waiting.

  7. 07

    Preparing

    Anaesthetic and fitness review

    Preoperative assessment covers cardiovascular fitness, medications and choice of general, regional or local anaesthesia.

Typical timeline: first visit to planned surgery in a few weeks - urgent within hours if strangulated.

Symptoms

What an inguinal hernia actually feels like.

Most start as a soft, painless groin bulge - and stay that way for years. It is the change in character that matters: pain, stuck, tense, discoloured.

  • Groin lump

    A soft, often painless bulge in the groin - appearing on standing, coughing or straining and reducing when lying down.

  • Cough impulse

    The lump expands with a cough - a classic sign detected on examination.

  • Discomfort or heaviness

    A dragging ache after a long day on your feet - relieved by lying down.

  • Scrotal extension

    Indirect hernias can descend along the spermatic cord into the scrotum, causing an enlarging scrotal mass.

  • Progressive enlargement

    Hernias rarely shrink on their own - most enlarge slowly over months to years.

  • Irreducible lump

    A hernia that will no longer push back is incarcerated - painful, tense and firm. Seek same-day surgical review.

  • Bowel obstruction

    Vomiting, distension and colicky abdominal pain with an irreducible groin lump - an emergency.

  • Red flag - strangulation

    A tender, tense, discoloured groin lump with severe pain, fever or shock suggests strangulated bowel. Call 999 or go to A&E.

Treatment

How inguinal hernias are treated in the UK.

Watchful waiting for minimally symptomatic men, open Lichtenstein mesh for most planned repairs, laparoscopic TEP or TAPP for bilateral, recurrent and female hernias - and urgent surgery when things go wrong.

  • Watchful waiting

    Reasonable for minimally symptomatic men - regular self-monitoring and clear advice on the warning signs that mean prompt review.

  • Open Lichtenstein repair

    The most common UK operation - a tension-free mesh placed through a small groin incision, usually as day surgery.

  • Laparoscopic TEP

    Totally extraperitoneal keyhole repair - mesh placed behind the muscle without entering the abdominal cavity. Fast recovery, low chronic pain risk.

  • Laparoscopic TAPP

    Transabdominal preperitoneal keyhole repair - useful for larger, complex or recurrent hernias and when the diagnosis is not clear-cut.

  • Robotic-assisted repair

    A specialist option in selected UK centres - a refinement of laparoscopic technique with enhanced visualisation and precision.

  • Open non-mesh (Shouldice)

    Tissue-only repair reserved for selective cases (patient preference, mesh contraindication) - performed in specialist hernia centres.

  • Emergency surgery

    Urgent theatre for obstructed or strangulated hernias - a specialist-commissioned emergency pathway, sometimes with bowel resection.

  • Bilateral laparoscopic repair

    When both sides need fixing at once, keyhole surgery is usually preferred - one anaesthetic, two hernias, quicker recovery.

Explore further

A detailed guide to laparoscopic repair.

The keyhole approach - TEP and TAPP - is covered in depth on our laparoscopic inguinal hernia repair page, including recovery times, mesh choices and when it beats open repair.

What this guide is based on

The sources behind every claim on this page.

UK national guidance and specialist society standards, current at the time of last review.

Key references

Guidelines and standards we relied on.

A quiet reminder

This guide is for information, not medical advice.

Your GP or hernia surgeon knows your body and history and can tell you which parts apply to you. If in doubt, get seen - and if the lump becomes tense, tender or stuck, go to A&E.

  • NICE Clinical Knowledge Summaries. Hernias.

  • British Hernia Society. Groin hernia guidelines.

  • HerniaSurge Group. International guidelines for groin hernia management.

  • Royal College of Surgeons of England. Commissioning guide: groin hernia.

  • NICE. Laparoscopic surgery for inguinal hernia repair (TA83).

Red flags

When an inguinal hernia needs urgent attention.

Most inguinal hernias can be planned electively. These are the features that change the pathway - to same-day surgical assessment or straight to A&E.

  • Strangulation

    A tense, tender, discoloured, irreducible groin lump with severe pain, fever or systemic upset. Call 999 or go to A&E - bowel can become ischaemic within hours.

  • Bowel obstruction

    Vomiting, abdominal distension, absolute constipation and a tender groin lump - a surgical emergency.

  • Sudden, irreducible lump

    A hernia that used to reduce but has become stuck - warrants same-day surgical assessment.

  • Rapidly enlarging scrotal mass

    A large scrotal hernia with new pain or skin changes - urgent specialist review.

  • Groin lump in a woman

    Femoral hernia is more common in women and has a much higher risk of strangulation - refer promptly rather than watching.

  • Post-operative pain and swelling

    A tense, red or discharging groin wound after repair may indicate haematoma, seroma or mesh infection - seek surgical review.

  • Persistent chronic groin pain

    Chronic post-herniorrhaphy pain affects up to 10% of patients and deserves specialist assessment, not simple reassurance.

  • Suspected recurrence

    A new lump at or near a previous repair site should be reviewed by a hernia surgeon - imaging may help clarify.

  • Signs of mesh complication

    Chronic sinus, recurrent infection, migrated or eroded mesh - warrants a specialist hernia-mesh service.

Living with it

Before, during and after a hernia repair.

Four things that make the biggest difference around a hernia diagnosis - knowing the warning signs, easing abdominal pressure, giving the repair time, and speaking up if pain lingers.

A quiet reminder

Most people are back to normal within a month.

Office work in one to two weeks, gentle exercise soon after, heavier activity by four to six weeks. Your surgical team will give tailored advice on lifting and driving.

  1. 01 Awareness

    Know the warning signs

    A stuck, tender or discoloured lump with pain or vomiting means A&E, not the GP. Everything else can wait for a planned review.

  2. 02 Lifestyle

    Ease the pressure, not the load

    Treat constipation, stop smoking to settle a chronic cough and lift sensibly - hernias enlarge with sustained abdominal pressure.

  3. 03 Recovery

    Give the repair time

    Most people return to office work in 1 to 2 weeks and heavier activity in 2 to 4 weeks - follow the surgical team’s advice on lifting.

  4. 04 Follow up

    Speak up about lasting pain

    Some discomfort settles over weeks. Pain that persists beyond three months deserves a specialist opinion, not stoicism.

Frequently asked

Everything we get asked about inguinal hernia.

Quick answers on types, urgency, open versus keyhole repair and long-term risks.

  • What is an inguinal hernia?

    An inguinal hernia is a protrusion of abdominal contents (usually fat or bowel) through a weakness in the inguinal canal - the narrow passage in the groin. It is the most common type of hernia and shows up as a soft groin lump that appears on standing or straining.

  • What is the difference between an indirect and a direct inguinal hernia?

    Indirect hernias (around 65%) travel through the deep inguinal ring alongside the spermatic cord and often extend into the scrotum - a congenital pattern related to a patent processus vaginalis. Direct hernias (around 35%) push straight through Hesselbach triangle in the posterior wall of the canal and rarely reach the scrotum - typically an acquired weakness in older adults.

  • Does every inguinal hernia need surgery?

    No. Trial evidence supports watchful waiting for minimally symptomatic men, with surgery offered if symptoms progress. However, most hernias enlarge over time and most people ultimately choose repair. Women with groin hernias and anyone with pain, enlargement or a stuck lump should be referred for surgery.

  • Open or keyhole repair - which is better?

    Both work well in experienced hands. Open Lichtenstein mesh repair is the UK default and can be performed under local, regional or general anaesthesia. Laparoscopic TEP and TAPP tend to give faster return to activity and less chronic pain, and are preferred for bilateral, recurrent and female hernias. Your surgeon will discuss which suits you.

  • What are the risks of surgery?

    Serious complications are uncommon. The most talked-about issue is chronic groin pain, which affects up to 10% of patients to some degree. Other risks include bleeding, infection, seroma, mesh problems, recurrence (around 1 to 3% at ten years) and, in men, rare injury to nerves or the spermatic cord.

  • When is an inguinal hernia an emergency?

    A hernia that becomes tense, tender, discoloured or stuck - especially with severe pain, vomiting, fever or abdominal distension - may be strangulated or obstructed. This is a surgical emergency: call 999 or go to A&E. Bowel can become ischaemic within hours.

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