About this symptom
A bulge near the groin or navel may appear when standing, coughing or straining and sometimes shrink while lying down. A hernia is one possible explanation, but other lumps can look similar.
What matters most
A hernia occurs when tissue protrudes through a weakness in the abdominal wall. Groin and umbilical hernias develop in different places, and their course depends on age, symptoms and individual factors.
Symptoms and reasons to seek help
A soft or firm swelling, pressure or discomfort may become more apparent with activity. Sudden constant pain, a hardened or discoloured lump, vomiting or inability to pass gas are dangerous changes.
How it differs from similar conditions
A groin lump may be a lymph node or another soft-tissue condition rather than a hernia. An umbilical hernia in a child may behave differently from one in an adult; visible size or absence of pain does not settle the diagnosis.
Assessment and investigations
A surgeon usually begins with a focused examination and may ask the person to cough or change position. Ultrasound or other imaging can help if the cause is uncertain or a deeper lump needs clarification.
Care options and limitations
Management depends on the type and risks. Some minimally symptomatic groin hernias in selected adult men may be watched after counselling, while others need planned repair. Belts and forceful home reduction do not fix an abdominal wall defect.
When emergency help is needed
A newly painful hard bulge, colour change, repeated vomiting or stopped bowel movements or gas may signal a trapped hernia or bowel obstruction. Go to emergency care or call 103 or 112 immediately; never force the bulge inward.
Related information
Femoral hernia; Epigastric (linea alba) hernia; Bowel obstruction; Surgical treatment of hernias.
Signs and symptoms
A soft or firm swelling, pressure or discomfort may become more apparent with activity. Sudden constant pain, a hardened or discoloured lump, vomiting or inability to pass gas are dangerous changes.
Diagnosis and tests
A surgeon usually begins with a focused examination and may ask the person to cough or change position. Ultrasound or other imaging can help if the cause is uncertain or a deeper lump needs clarification.
Care and treatment approaches
Management depends on the type and risks. Some minimally symptomatic groin hernias in selected adult men may be watched after counselling, while others need planned repair. Belts and forceful home reduction do not fix an abdominal wall defect.
When to seek urgent care
A newly painful hard bulge, colour change, repeated vomiting or stopped bowel movements or gas may signal a trapped hernia or bowel obstruction. Go to emergency care or call 103 or 112 immediately; never force the bulge inward.
Frequently asked questions
Can a hernia bulge disappear when I lie down?
Yes. Some hernias become smaller when supine, but the underlying abdominal wall defect can still be present.
Is ultrasound enough to diagnose every hernia?
Not always. A typical groin hernia may be recognised on examination; imaging is useful when the diagnosis is uncertain.
When is a groin or navel bulge an emergency?
Severe persistent pain, a hard discoloured lump, vomiting or inability to pass gas needs immediate medical help.
Information sources
Medical source links used when preparing this article.
Important information
A medical consultation is needed for diagnosis and treatment recommendations.
Self-treatment can be harmful to your health.
