Abdominal hernia symptoms: what you may notice
A bulge or lump in the abdomen or groin may show more when you stand or cough and shrink when you lie down. You may also feel heaviness or a pulling sensation around it, or pain with lifting or movement. These symptoms need not occur together, and examination determines whether the bulge is a hernia. [2, 11]
Seek urgent assessment if the bulge becomes very painful and cannot go back in, or comes with vomiting or marked bloating; do not wait for a routine appointment. [2, 11]
What a hernia is and how it usually shows up
A hernia happens when part of an internal organ or fatty tissue pushes through a weak spot in the muscle or tissue wall that normally holds it in place. Most hernias appear as a soft lump or bulge in the abdomen or groin. The lump is often easier to see or feel when you stand, cough, laugh or strain, and it may shrink or disappear when you lie down. [2, 3, 4]
Some people notice only the bulge. Others describe an ache, a burning feeling, pressure or a heavy, dragging sensation, especially at the end of the day, after lifting or after standing for a long time. In men, a groin hernia can extend into the scrotum and cause swelling or discomfort around the testicle. [5]
Many things increase pressure inside the abdomen or weaken the wall over time: repeated heavy lifting, a long-standing cough, straining with constipation, excess weight, pregnancy and previous abdominal surgery. A weak area can also be present from birth. Knowing which of these apply to you helps the doctor understand the story, but none of them confirms the diagnosis on its own. [4]
A hiatus hernia is a different condition: part of the stomach moves up through an opening in the diaphragm towards the chest. It does not usually cause a visible lump, so this article focuses on abdominal-wall and groin hernias. [2, 3]
Common types and where they appear
Inguinal hernias are the most common type. They appear in the groin, where the inguinal canal passes through the lower abdominal wall, and they are much more common in men than in women. [1, 2]
Femoral hernias also appear low in the groin, near the top of the inner thigh, and are more common in women. They are less common than inguinal hernias, but they carry a higher risk of becoming trapped, so international guidelines recommend repairing them rather than simply watching them. That is one reason a groin lump in a woman needs a careful examination. [2, 6]
Umbilical hernias appear at or around the belly button. They are common in babies, and many close on their own during early childhood. In adults they are often linked to raised pressure inside the abdomen, such as pregnancy or excess weight. For a child, see our guide on when a hernia in children needs assessment. [2, 4]
Incisional and other ventral hernias come through the front of the abdominal wall, often at or near the scar of an earlier operation. Obesity, smoking, wound infection after surgery and conditions that raise abdominal pressure all increase the risk. [8, 10]
Warning signs that mean emergency care
A hernia that goes back in easily when you lie down, or with gentle pressure, is called reducible. If the contents become stuck outside the wall and no longer go back, the hernia is incarcerated. If the trapped tissue loses its blood supply, the hernia is strangulated, which is a surgical emergency because the affected bowel can be damaged. [1]
Go to the emergency department straight away if you have a hernia or a new bulge and any of the following: sudden severe pain at the bulge or in the abdomen, a bulge that becomes firm or tender and will not go back, nausea or vomiting, being unable to pass stool or wind, a swollen abdomen, fever, or skin over the bulge that turns red, purple or dark. [2, 5]
Do not try to force a painful, firm bulge back in, and do not wait to see whether it settles by itself. Tell the emergency team when the bulge first appeared, when the pain started and when it stopped going back. [2, 5]
Less urgent changes still deserve a prompt appointment: a bulge that is getting bigger, pain that is starting to affect work or sleep, or a lump that has become harder to push back than before. These changes can alter the timing of repair. [5, 6]
How the doctor confirms a hernia
Diagnosis usually starts with a conversation and a physical examination. The doctor looks at and feels the area while you are lying down and standing, and often asks you to cough or strain, because that makes a hernia easier to feel. [1, 9]
Imaging is not always needed. When the examination is unclear, for example in a person with a larger body size, or when there is groin pain without an obvious lump, an ultrasound may be used first. A CT or MRI scan may be requested when the diagnosis is still uncertain or when surgery for a large or recurrent ventral hernia is being planned. [1, 6, 9, 10]
Other conditions can cause a lump in the groin or abdomen, including swollen lymph nodes, a fatty lump under the skin, a fluid collection around the testicle or a muscle strain. Examination is how these are told apart, which is why a phone photograph or an online symptom checker cannot settle the question. [4, 9]
Tell the doctor about previous operations in the area, any earlier hernia repair, a long-standing cough, constipation, difficulty passing urine and any medicines that thin the blood. These details help decide whether imaging is needed and which repair is safest. [8, 9]
Watchful waiting or surgery?
Hernias in adults do not heal on their own, and surgery is the only way to repair the weak area. That does not mean every hernia needs an operation immediately. [1, 5]
For men with an inguinal hernia that causes few or no symptoms, the international HerniaSurge guidelines consider watchful waiting a reasonable option after discussion with a surgeon. Many of these men eventually choose surgery because symptoms increase over time, so a watch-and-wait plan should include regular review and clear warning signs. [6]
Femoral hernias are different: because of their higher risk of complications, guidelines recommend repair and early planning rather than waiting. A hernia that is painful, growing or interfering with daily activities is also a reason to discuss repair sooner. [2, 6]
The decision also depends on your general health, other medical conditions, the medicines you take and your own priorities. Ask the surgeon what the realistic benefit of repair is in your case, what the risks of waiting are, and which change would make them recommend moving faster. [2, 6]
What repair involves
Hernia repair can be done through an open cut over the hernia or by keyhole (laparoscopic) surgery through several small cuts. Both methods return the tissue to its place and strengthen the weak area, and for most adult groin hernias a surgical mesh is used to reinforce the wall. [2, 6]
The surgeon chooses the approach based on the type and size of the hernia, whether it has been repaired before, whether both sides are affected, the type of anaesthesia that suits you and the surgeon's own experience. For women with a groin hernia, guidelines suggest considering a laparoscopic approach because it allows a hidden femoral hernia to be seen. [6]
Ventral and incisional hernias are often more complex. Before a planned repair, surgeons commonly ask people to stop smoking and to get conditions such as diabetes and weight under better control, because these affect wound healing and the chance of the hernia coming back. [8, 10]
Recovery is usually gradual. Many people go home on the same day or the next day after a planned groin repair, and the surgical team will explain when to return to driving, work and lifting. Follow the written instructions you are given rather than general timelines from the internet. [2, 8]
After pregnancy or surgery: not every bulge is a hernia
During pregnancy the two long muscles down the front of the abdomen stretch and move apart. This separation, called divarication or diastasis of the rectus muscles, can remain after birth and may show as a ridge or doming along the middle of the tummy when getting up from lying down or sitting up. It is different from a hernia, where tissue pushes through a gap in the wall; it often improves in the months after delivery, and the usual first step is guided exercise with a physiotherapist. [7]
A true umbilical or incisional hernia can also appear after pregnancy or a caesarean section, and the two can occur together. A hernia usually forms a more defined lump coming through a gap in the wall, while a muscle separation is a broader bulge along the midline. [7, 10]
If you are unsure which one it is, examination tells them apart, and an ultrasound may help when the picture is unclear. Our article on hernia after pregnancy or a C-section explains this in more detail. [7, 10]
Anyone with a bulge near an old surgical scar should mention it at their next visit even if it is painless, because incisional hernias can grow slowly over time. [8, 10]
Preparing for your visit
Before the appointment, note where the bulge is, when you first noticed it, whether it goes back in when you lie down, what makes it bigger and whether it has ever become stuck or very painful. If it appears only when you stand or strain, a photograph taken at that moment can help, as long as it is shared with the clinic rather than used to diagnose yourself. [2, 5]
Bring a list of previous operations, any earlier hernia repair, the medicines you take including blood thinners, and conditions such as diabetes, a long-standing cough or constipation. Mention if you smoke, because smoking affects healing after repair. [8, 10]
For more on how the different abdominal-wall hernias look and feel, read our abdominal-wall hernia symptoms guide. If you have a bulge that has not been examined yet, or a known hernia that is changing, you can book an appointment for an examination and a clear plan. [1, 2]
If at any point the bulge becomes painful, firm and stuck, or you start vomiting or cannot pass wind, do not wait for the appointment: go to the emergency department. [2, 5]
