An umbilical hernia in adults is a bulge near the belly button where tissue or part of the intestine pushes through a weak spot in the abdominal wall. About 90% of umbilical hernias in adults are acquired, meaning they develop over time rather than being present from birth. Unlike childhood umbilical hernias, which often close on their own, adult umbilical hernias don’t resolve without treatment and may eventually need surgical repair.
How an Umbilical Hernia Forms
Your belly button is a natural weak point in your abdominal wall. It’s the spot where blood vessels connected you to your mother before birth, and the tissue there is thinner than the surrounding muscle. Over time, stretching of the abdominal muscles and excess body fat can separate muscle fibers and weaken the connective tissue layers, creating gaps that allow internal contents to push through.
People with umbilical hernias often lack a complete layer of supportive tissue behind the belly button, and the internal ligament that normally anchors to the area may be positioned abnormally. When pressure inside the abdomen increases, whether from straining, coughing, or simply carrying extra weight, that pressure finds the path of least resistance and forces tissue outward through the gap.
Common Risk Factors
Anything that chronically raises pressure inside your abdomen increases your risk. The most common contributors include obesity, pregnancy (especially multiple pregnancies), persistent heavy lifting, chronic constipation, and long-lasting coughs. Fluid buildup in the abdomen from liver disease is another significant factor. People with diabetes, liver cirrhosis, or ascites have notably higher rates of both developing umbilical hernias and having them recur after repair.
What It Looks and Feels Like
The hallmark sign is a soft swelling or bulge at or near the navel. It may be small enough that you only notice it when you’re straining, coughing, or standing up, and it might flatten when you lie down. Some people have no pain at all and only discover the hernia by sight or touch. Others feel a dull ache or discomfort around the belly button, particularly during physical activity or after long periods of standing.
The bulge can range from less than a centimeter across to several centimeters wide. Larger hernias are more likely to cause discomfort and are harder to push back in. Diagnosis is usually straightforward: a physical exam is often enough, though your doctor may order an ultrasound or X-ray to confirm the size and contents of the hernia.
When Surgery Is Recommended
Not every umbilical hernia needs immediate surgery. Small hernias that cause no symptoms can sometimes be monitored, especially if the risks of surgery outweigh the risks of leaving it alone. But surgeons generally recommend repairing adult umbilical hernias because, unlike in children, they won’t close on their own. Surgery is particularly advised when the hernia is growing, causing pain, or becoming difficult to push back into place.
The main concern with a “watch and wait” approach is that the hernia can become incarcerated, meaning the tissue gets trapped and can’t be pushed back in, or strangulated, meaning blood flow to the trapped tissue gets cut off. Strangulation is a medical emergency that can lead to tissue death, gangrene, and life-threatening infection.
Warning Signs of Strangulation
A strangulated hernia requires emergency surgery. Get to an emergency room if you experience:
- Severe abdominal or groin pain that keeps getting worse
- Nausea and vomiting alongside a painful, firm bulge
- Skin color changes around the bulge, turning reddish, pale, or darker than usual
- A hernia that won’t flatten when you lie down and can’t be gently pushed back in
Mesh Repair vs. Suture Repair
There are two main approaches to fixing an umbilical hernia: stitching the gap closed (suture repair) or reinforcing it with a synthetic mesh patch. The choice depends largely on the size of the defect, and the data strongly favors mesh for reducing the chance the hernia comes back.
For small defects under 2 cm, suture repair is common, but even here mesh shows an advantage. One randomized trial of 300 patients found recurrence dropped from 11.4% with suture repair to 3.6% with mesh. A larger cohort study of over 1,300 patients found similar results: 21% recurrence with sutures versus 10% with mesh over roughly four and a half years of follow-up.
For defects larger than 1.5 cm, the gap widens dramatically. One study found that suture repair of these larger hernias had a recurrence rate of 7.3%, and on deeper analysis, patients were seven times more likely to see their hernia return compared to those who received mesh. For defects over 4 cm, suture-only repair has been linked to recurrence rates as high as 54%. Overall, published recurrence rates range from about 2.7% with mesh to 27% without it.
Both open surgery and laparoscopic (keyhole) surgery are options. Laparoscopic repair uses small incisions and a camera, which generally means a faster recovery. Your surgeon will recommend an approach based on the hernia’s size, your overall health, and whether you’ve had previous abdominal surgery.
Recovery After Surgery
Most people feel noticeably better within a few days, and recovery is faster after laparoscopic surgery compared to open repair. You’ll need to avoid lifting anything heavy for several weeks. That includes things you might not think of as “heavy lifting,” like grocery bags, a vacuum cleaner, bags of pet food, or picking up a child.
Strenuous exercise (jogging, biking, weight training) is off limits until your surgeon clears you. Most people return to desk jobs within one to two weeks. If your work involves physical labor or heavy lifting, expect to need four to six weeks off.
Factors that increase your risk of recurrence after surgery include obesity, diabetes, liver disease, and ascites. Maintaining a healthy weight, managing chronic conditions, and avoiding activities that spike abdominal pressure during healing all improve your long-term outcome.