Hernia: What It Is, Why It Happens, and How It’s Treated
Updated: 3 days ago
Medically reviewed by Dr. Baraa Alnahhal, MD · Last reviewed: October 2026
Quick Answer
A hernia is a condition that most often occurs in the abdomen or groin, typically causing a visible lump that may appear when you cough or strain. [1] Men are more likely to develop inguinal hernias, and women femoral hernias. [1] [2] Hernias do not go away on their own and typically worsen without surgery. [1] Sudden severe pain requires immediate medical attention.
What the research says
Waiting is a safe option for some men with minimal symptoms. In a randomized trial of 720 men with minimally symptomatic inguinal hernias (364 watchful waiting, 356 surgical repair), pain limiting activities at 2 years was 5.1% vs 2.2% (P = .06). Twenty-three percent of the watchful-waiting group crossed over to surgery, most often because of increasing pain, and acute incarceration was rare at 1.8 per 1,000 patient-years. (Fitzgibbons et al., JAMA, 2006) [3]
A delay before repair did not worsen results. Among 353 trial patients who had repair (288 within 6 months, 65 after 6 months), surgical time, complications, recurrence rates and satisfaction were comparable, and the wait was not linked to more long-term pain. (Thompson et al., Am J Surg, 2008) [4]
Keyhole and open mesh repairs have similar recurrence rates. A meta-analysis of 12 randomized trials (about 4,000 patients) found no significant difference in recurrence. Laparoscopic repair took about 16 minutes longer but patients returned to normal activity about one week sooner and had roughly half the odds of chronic groin pain. (Essa, BMC Surg, 2025) [5]
What is a hernia?
A hernia is a medical condition where part of your internal organs, most often the intestines, bulges through an opening or a weak area in the muscle wall that is supposed to hold it in place. This usually occurs in the abdominal cavity, the area between your chest and hips. [1] While some hernias are present at birth (congenital), most develop over time due to a combination of muscle weakness and repetitive physical strain. [1]
How common are hernias?
Hernias are extremely frequent, though their prevalence varies by type. For instance, inguinal hernias affect approximately one-quarter of all men during their lifetime. [1] Hiatal hernias, which involve the stomach, are found in about 20% of the U.S. population, with that number rising to 50% for those over the age of 50. [1] In newborns, congenital hernias appear in roughly 15% of cases, most commonly manifesting as a bulge near the belly button. [1]
Hernia type | Estimated prevalence | Primary population affected |
Inguinal hernia | 75% of all hernias | Primarily men |
Hiatal hernia | 20% of the U.S. population | Adults over 50 |
Congenital hernia | 15% of newborns | Infants |
Incisional hernia | 10% of all hernias | Post-surgical patients |
Common types of hernias
There are several specific types of hernias, categorized primarily by where they occur in the body. Understanding these distinctions helps in identifying symptoms and determining the appropriate treatment path.
Inguinal and femoral hernias
The inguinal hernia is the most frequent type, occurring when the bowel pushes into the inguinal canal, a passageway through the lower abdominal wall in the groin. [1] A femoral hernia is a less common variation that occurs slightly lower, in the femoral canal. [1] While inguinal hernias are much more common in men, femoral hernias occur more frequently in women and can cause unexplained groin pain. [1] [2]
Hiatal and diaphragmatic hernias
A hiatal hernia happens when the top part of the stomach pushes through the diaphragm, the muscle separating the chest from the abdomen, and into the chest cavity. [1] [2] This often leads to chronic acid reflux or heartburn. [1] A more serious version is the congenital diaphragmatic hernia (CDH), a birth defect where the diaphragm fails to close completely during fetal development, which can crowd the lungs and requires intensive medical care. [1]
Ventral hernias
Ventral hernias occur through the front wall of the abdomen. This category includes umbilical hernias, which appear near the belly button, and incisional hernias, which develop at the site of a previous surgical scar where the muscle wall has weakened over time. [1]
Recognizing the symptoms
Not every hernia causes noticeable pain, but most will produce physical signs that indicate something is wrong. The most common indicator is a visible lump or bulge that may appear when you are standing up, coughing, or lifting heavy objects, and then disappear when you lie down. [1]
Physical sensations
You might feel a dull ache, a sense of pressure, or a sharp pinching sensation when the herniated tissue pushes through the muscle wall. [1] In the case of hiatal hernias, you may not see a bulge at all; instead, the primary symptoms are internal, such as persistent heartburn, indigestion, or chest discomfort. [1]
Warning signs in children
In infants, a hernia (usually umbilical) often becomes visible when the baby is crying, pooping, or straining. [1] The bulge may seem to pop out and then retract when the baby is calm. If your child seems unusually irritable during these moments, it is important to have them evaluated by a healthcare professional.
Causes and risk factors
A hernia is caused by a combination of muscle weakness and strain. While some people are born with a preexisting opening or weak spot, most hernias develop due to repetitive stress that wears down the connective tissue over many years. [1]
Common triggers for adults
Physical exertion: Jobs that require heavy lifting or standing for long periods. [1]
Chronic straining: Long-term constipation or a chronic cough or sneezing from allergies. [1] [2]
Body weight: Obesity (a BMI over 30) puts significant pressure on the abdominal wall. [1] [2]
Medical history: Previous abdominal or pelvic surgeries can leave behind weak spots. [1]
Pregnancy: The physical changes of pregnancy, especially multiple pregnancies, can stretch and weaken abdominal muscles. [1]
Risk factors for children
Infants are more likely to be born with a hernia if they are born prematurely or have certain underlying conditions, such as cystic fibrosis, connective tissue disorders, or hip dysplasia. [1] In boys, undescended testicles are also a known risk factor for inguinal hernias.
Diagnosis and treatment options
Diagnosing a hernia is usually straightforward. A healthcare provider will perform a physical exam, often asking you to cough or stand in different positions to make the hernia visible. [1] [2] If the hernia is deep or internal, imaging tests like a CT scan may be used to get a clearer view of the soft tissue. [1] [2]
The wait-and-watch approach
If a hernia is small and not causing symptoms, your doctor might suggest monitoring it rather than immediate surgery. [1] [3] However, because hernias generally grow larger and the muscle wall continues to weaken, most will eventually require repair. [1]
Surgical procedures
Modern hernia repair is a very common and successful procedure. [1] The goal is to push the protruding tissue back into place and reinforce the weak area. [1]
Laparoscopic surgery: A minimally invasive method using a small camera and thin tools, resulting in smaller scars and faster recovery. [1]
Robotic surgery: Similar to laparoscopy, but the surgeon uses high-precision robotic arms controlled from a computer console. [1]
Open surgery: A traditional method involving a single larger incision, sometimes necessary for complex or large hernias.
Treatment method | Description | Key benefit |
Laparoscopic | Small incisions with a camera | Faster recovery time |
Robotic | High-precision robotic tools | Enhanced accuracy for complex cases |
Open surgery | Traditional large incision | Direct access for large repairs |
Wait-and-watch | Regular monitoring | Avoids surgery for asymptomatic cases |
Conclusion
While most hernias are not immediate emergencies, they are progressive conditions that tend to worsen without medical intervention. Identifying the signs early and understanding your treatment options can help prevent serious complications and ensure a smooth recovery. If you suspect you have a hernia, consult a healthcare provider to discuss the best management plan for your specific situation.
For more information on maintaining abdominal health and recovering from surgery, visit Rinnit.com.
Frequently Asked Questions
Can a hernia heal on its own without surgery?
With the exception of some umbilical hernias in infants, hernias do not heal on their own. [1] They generally grow larger and more symptomatic over time. [1]
Is it safe to exercise with a hernia?
You should consult your doctor before starting or continuing an exercise routine. Straining can worsen a hernia, though some light activity may be permitted.
What is a "sports hernia"?
Despite the name, a sports hernia is not actually a hernia. It is typically a tear in a tendon or muscle in the groin area, often caused by sudden twisting movements in athletes. [1]
How long is the recovery after hernia surgery?
Most hernia repairs are outpatient procedures. [1] Recovery times vary, but many people return to light activities within a week, especially after minimally invasive surgery.
Can I push a hernia back in myself?
A doctor may be able to "reduce" a hernia by gently pushing it back in, but you should never attempt to force a hernia back in yourself, as this can cause injury.
What happens if a hernia is left untreated?
An untreated hernia will likely grow larger and may become "incarcerated" (stuck), which can lead to a life-threatening loss of blood supply to the tissue. [1]
Are hernias hereditary?
While not strictly hereditary, you may be more prone to hernias if you have an inherited weakness in your connective tissues.
Does wearing a hernia belt cure the condition?
No. A hernia belt or truss can help manage symptoms by holding the bulge in place, but it does not fix the underlying muscle weakness. [1] [2]
Can coughing cause a hernia?
Yes, chronic coughing or sneezing puts repetitive pressure on the abdominal wall, which can eventually cause a hernia to develop. [1] [2]
Is hernia surgery risky?
Hernia surgery is considered very safe and is one of the most common operations performed. Like any surgery, it carries minor risks such as infection or reaction to anesthesia. [1]
Can women get inguinal hernias?
Yes, though they are much less common in women than in men. Women are more likely to develop femoral hernias in the groin area. [1] [2]
What is surgical mesh?
Surgical mesh is a medical device used to provide additional support to the weakened muscle wall during a hernia repair, reducing the chance of recurrence.
Can a hiatal hernia cause chest pain?
Yes. Because a hiatal hernia can cause severe acid reflux, it often mimics the sensation of chest pain or heartburn.
What is a strangulated hernia?
A strangulated hernia occurs when the herniated tissue is trapped so tightly that its blood supply is cut off. This is a surgical emergency. [1] [2]
How can I prevent a hernia?
While not all hernias are preventable, you can reduce your risk by maintaining a healthy weight, avoiding heavy lifting, and treating chronic coughs or constipation.
Related Reading
Inguinal Hernia: Symptoms, Causes, and When Surgery Is Needed explains the most common groin hernia and when surgery is needed.
Hiatal Hernia: Symptoms, Causes, and Treatment Options explains how part of the stomach pushes into the chest and causes heartburn.
Umbilical Hernia in Babies and Adults: When It Closes on Its Own and When Surgery Is Needed explains hernias at the belly button in babies and adults.
Hernia Repair Surgery: Procedures, Recovery, and Outcomes explains open and laparoscopic hernia repair and what recovery involves.
References
Cleveland Clinic. Hernia. Cleveland Clinic. Last updated February 7, 2023. https://my.clevelandclinic.org/health/diseases/15757-hernia
MedlinePlus Medical Encyclopedia, U.S. National Library of Medicine. Hernia. MedlinePlus. Review date September 30, 2024. https://medlineplus.gov/ency/article/000960.htm
Fitzgibbons RJ, et al. Watchful waiting vs repair of inguinal hernia in minimally symptomatic men: a randomized clinical trial. JAMA. 2006;295(3):285-292. PMID 16418463. https://doi.org/10.1001/jama.295.3.285
Thompson JS, et al. Does delaying repair of an asymptomatic hernia have a penalty? Am J Surg. 2008;195(1):89-93. PMID 18070730. https://doi.org/10.1016/j.amjsurg.2007.07.021
Essa MEA. Is laparoscopy better? A Meta-analysis comparing laparoscopic and open inguinal hernia repair across 4,000 patients. BMC Surg. 2025;26(1):17. PMID 41454384. https://doi.org/10.1186/s12893-025-03452-0
Medical disclaimer
This article is for general educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment. Always seek the advice of your physician or other qualified health provider with any questions you may have regarding a medical condition.
Comments