Umbilical Hernia: Clinical Presentation, Diagnostic Evaluation, Management, and Outcomes – A Case Report

Abstract

Umbilical hernia is a common abdominal wall defect characterized by the protrusion of intra-abdominal contents through a weakness in the umbilical ring. It is frequently observed in infants and adults, with higher prevalence in individuals with increased intra-abdominal pressure such as obesity, pregnancy, and chronic cough. Although often asymptomatic, umbilical hernias may present with pain, swelling, or complications such as incarceration and strangulation, which require urgent intervention.

We report the case of a 45-year-old female presenting with a progressively enlarging swelling at the umbilicus associated with intermittent pain. Clinical examination and imaging confirmed the diagnosis of an uncomplicated umbilical hernia. The patient underwent elective surgical repair with mesh reinforcement, resulting in excellent postoperative recovery and no recurrence at follow-up.

This case highlights the importance of early diagnosis, appropriate surgical management, and risk factor modification in preventing complications associated with umbilical hernia.

Introduction

Umbilical hernia is defined as a protrusion of abdominal contents through a defect in the umbilical ring. It is a common condition encountered in surgical practice, accounting for a significant proportion of anterior abdominal wall hernias. While congenital umbilical hernias are common in infants and often resolve spontaneously, adult umbilical hernias are typically acquired and require surgical intervention.

The condition arises due to a weakness in the abdominal wall at the umbilicus, which may be exacerbated by increased intra-abdominal pressure. Common etiological factors include obesity, multiparity, ascites, chronic cough, and heavy lifting. The prevalence of umbilical hernia in adults is estimated to be higher in women, particularly those with a history of multiple pregnancies.

Pathophysiologically, the defect allows preperitoneal fat, omentum, or bowel loops to herniate through the fascial opening. Over time, the hernia may enlarge and become symptomatic. Complications such as incarceration (non-reducible hernia) and strangulation (compromised blood supply) can occur, leading to ischemia and requiring emergency surgical intervention.

Risk factors for umbilical hernia include:
• Obesity
• Multiple pregnancies
• Chronic cough or respiratory disease
• Ascites (commonly in liver disease)
• Heavy physical activity
• Previous abdominal surgeries

Clinical presentation varies from an asymptomatic swelling to acute abdomen in complicated cases. Early recognition and timely management are essential to prevent morbidity.

Case Report

Patient History

A 45-year-old female presented to the surgical outpatient department with complaints of:
• Swelling at the umbilical region for 1 year
• Gradual increase in size of the swelling
• Intermittent dull aching pain, aggravated by exertion

The swelling was initially small and reducible but had progressively increased in size. The patient reported discomfort while standing for prolonged periods and during physical activity.

She had a history of three full-term pregnancies and was overweight (BMI: 29 kg/m²). There was no history of abdominal surgery, trauma, or chronic illness. She denied symptoms such as vomiting, constipation, or signs suggestive of bowel obstruction.

Clinical Examination

On general examination:
• Vital signs were stable
• No signs of systemic illness

Abdominal examination revealed:
• A soft, non-tender swelling at the umbilicus measuring approximately 4 × 3 cm
• The swelling was reducible on gentle pressure
• Positive cough impulse
• No overlying skin changes

There were no signs of incarceration or strangulation. The rest of the abdominal examination was unremarkable.

Clinical Evaluation

Differential Diagnosis

Based on the clinical findings, the following conditions were considered:
• Umbilical hernia
• Paraumbilical hernia
• Epigastric hernia
• Lipoma of the abdominal wall
• Umbilical granuloma

The presence of a reducible swelling with a cough impulse strongly suggested an umbilical hernia.

Investigations

Laboratory Findings

• Complete blood count: Within normal limits
• Liver and renal function tests: Normal
• Blood glucose levels: Normal

Imaging Studies

• Ultrasound abdomen revealed:
– Defect in the anterior abdominal wall at the umbilicus
– Herniation of omental fat through the defect
– No bowel involvement
– No signs of obstruction or strangulation

• CT scan (if performed) may further delineate the size of the defect and contents of the hernia sac, although not required in uncomplicated cases.

Diagnosis

Based on clinical examination and imaging findings, a diagnosis of uncomplicated umbilical hernia was established.

Management and Outcome

Management Strategy

Given the symptomatic nature of the hernia and the risk of future complications, elective surgical repair was planned. A multidisciplinary approach involving surgical and anesthetic teams was adopted.

Surgical Treatment

The patient underwent open mesh hernioplasty, which is considered the standard of care for adult umbilical hernia.

Procedure details:
• A small infraumbilical incision was made
• The hernia sac was identified and dissected
• Contents (omentum) were reduced into the abdominal cavity

• The defect was closed
• A synthetic mesh was placed to reinforce the abdominal wall

Mesh repair significantly reduces recurrence rates compared to primary suture repair.

Postoperative Care

• Analgesics for pain management
• Early mobilization
• Wound care and infection monitoring
• Advice on avoiding heavy lifting

Follow-Up and Outcome

At 1 week:
• Wound healing was satisfactory
• No signs of infection

At 1 month:
• Complete resolution of symptoms
• No recurrence

At 6 months:
• Patient remained asymptomatic
• No evidence of hernia recurrence

The patient demonstrated excellent recovery with improved quality of life.

Discussion

Pathophysiology

Umbilical hernia develops due to a defect in the abdominal wall fascia at the umbilical ring. Increased intra-abdominal pressure leads to gradual protrusion of intra-abdominal contents. In adults, this defect does not close spontaneously and often enlarges over time.

The hernia sac may contain:
• Preperitoneal fat
• Omentum
• Small intestine

Complications arise when the herniated contents become trapped (incarceration) or when blood supply is compromised (strangulation), leading to ischemia and necrosis.

Diagnostic Challenges

Diagnosis is primarily clinical but may be challenging in obese patients or small hernias.

Key challenges include:
• Differentiating from other abdominal wall swellings
• Detecting early complications
• Identifying occult hernias

Imaging modalities such as ultrasound and CT scan are useful adjuncts in uncertain cases.

Treatment Considerations

Surgical Repair

Surgery is the definitive treatment for adult umbilical hernia.

Options include:
• Primary suture repair (for small defects)
• Mesh repair (preferred due to lower recurrence rates)
• Laparoscopic repair (minimally invasive option)

Mesh repair is widely recommended due to its superior outcomes and reduced recurrence.

Indications for Surgery

• Symptomatic hernia
• Increasing size
• Cosmetic concerns
• Risk of complications

Emergency surgery is required in cases of strangulation or bowel obstruction.

Complications

If untreated, umbilical hernia can lead to:
• Incarceration
• Strangulation
• Bowel obstruction
• Ischemia and necrosis
• Peritonitis

Postoperative complications may include:
• Wound infection
• Seroma formation
• Mesh-related complications
• Recurrence

Prognosis

The prognosis of umbilical hernia is generally favorable with timely surgical intervention. Mesh repair has significantly improved outcomes and reduced recurrence rates.

Factors influencing prognosis include:
• Size of hernia defect
• Surgical technique
• Patient comorbidities (e.g., obesity, diabetes)
• Adherence to postoperative care

Conclusion

Umbilical hernia is a common surgical condition that can significantly impact patient quality of life if left untreated. This case highlights the importance of early diagnosis and timely surgical intervention to prevent complications.

Elective mesh repair remains the gold standard for adult umbilical hernia, offering excellent outcomes and low recurrence rates. Patient education regarding lifestyle modification, weight management, and avoidance of risk factors is crucial in preventing recurrence.

A comprehensive, patient-centered approach ensures optimal clinical outcomes and long-term success in the management of umbilical hernia.

References

1. Ponten, J. E. H., Thomassen, I., & Nienhuijs, S. W. (2014). A collective review on mesh-based repair of umbilical and epigastric hernias. Indian Journal of Surgery. https://pubmed.ncbi.nlm.nih.gov/26396470/
2. Aiolfi, A., Cavalli, M., Micheletto, G., et al. (2020). Open mesh versus suture repair of umbilical hernia: systematic review and trial sequential meta-analysis. Hernia. https://pubmed.ncbi.nlm.nih.gov/32096090/
3. Kaufmann, R., Halm, J. A., Eker, H. H., et al. (2018). Mesh versus suture repair of umbilical hernia in adults: a randomized controlled trial. The Lancet. https://pubmed.ncbi.nlm.nih.gov/29459021/
4. Henriksen, N. A., Jensen, K. K., Bisgaard, T., & Helgstrand, F. (2022). Suture or mesh repair of the smallest umbilical hernias: a nationwide database study. World Journal of Surgery. https://pubmed.ncbi.nlm.nih.gov/35306587/
5. Moradian, S., Klosowiak, J. L., Boctor, M. J., et al. (2023). Novel approach for umbilical hernia repair using mesh strips. Plastic and Reconstructive Surgery Global Open. https://pubmed.ncbi.nlm.nih.gov/37113310/
6. Arroyo, A., García, P., Pérez, F., et al. (2001). Randomized clinical trial comparing suture and mesh repair of umbilical hernia in adults. British Journal of Surgery. https://pubmed.ncbi.nlm.nih.gov/11578208/

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