A lump in, above or close to the belly button is commonly caused by a weakness in the abdominal wall. It may be present all the time or become visible only when standing, coughing, exercising or straining. Pregnancy, changes in weight and increased pressure within the abdomen can contribute, but an examination is needed to distinguish a hernia from muscle separation, a lipoma or another abdominal wall condition.
Could it be an umbilical or epigastric hernia?
An umbilical hernia forms through or immediately beside the belly button. An epigastric hernia develops in the midline between the belly button and breastbone. Both can contain fatty tissue and, less commonly, bowel. The lump may feel soft or firm and can cause tenderness, pressure or a pulling sensation. Some remain small, while others gradually increase in size.
Other possible causes
Not every central abdominal lump is a hernia. Rectus diastasis can create a ridge or dome along the midline when you sit up, but it does not involve a true hole in the abdominal wall. Cysts, lipomas and scar-related changes can also produce a localised swelling. A specialist assessment helps identify the structure involved and whether treatment is necessary.
How is the lump investigated?
Your surgeon will review your symptoms, previous pregnancies, operations and general health. The abdomen is examined while relaxed and during coughing or gentle straining. Many hernias can be diagnosed clinically. Ultrasound or CT imaging may be arranged if the lump is small, painful without a clear cause, associated with previous surgery or difficult to define.
Warning signs requiring urgent assessment
A hernia may occasionally become trapped. Seek urgent medical care if the lump becomes severely painful, hard, discoloured or impossible to reduce, especially with vomiting, increasing abdominal pain, bloating or inability to pass stool or wind. Do not repeatedly force a painful lump back into place.
Treatment options
A small, minimally symptomatic hernia may sometimes be monitored. Surgery may be recommended when the lump is painful, enlarging, difficult to reduce or affecting daily activity. Repair may use sutures or mesh depending on the size of the defect and individual recurrence risk. Your surgeon will explain the safest option for you.
Frequently asked questions
Is a belly-button lump always a hernia? No. Muscle separation, lipomas and other conditions can look similar, so examination is recommended.
Can pregnancy cause an umbilical hernia? Pregnancy can reveal or worsen a pre-existing weakness by increasing pressure on the abdominal wall.
Will the lump get bigger? Some remain stable, while others enlarge over time. Changes in size, pain or reducibility should be reviewed.