Appendicitis: Symptoms and Causes

Overview

• Appendicitis is the inflammation of the appendix, a narrow, finger-shaped pouch protruding from the colon on the lower right side of the abdomen.
• Commonly occurs in people aged 10 to 30.
• Symptoms begin around the belly button and move to the lower right abdomen, becoming severe over time.
• Treatment includes antibiotics and usually surgery to remove the appendix.

Symptoms

• Sudden pain in the right side of the lower abdomen.
• Pain starting around the belly button, shifting to lower right abdomen.
• Pain worsens with movement like coughing or walking.
• Nausea, vomiting, and loss of appetite.
• Possible low-grade fever.
• Constipation or diarrhea.
• Bloating and gas.
• Pain location may vary depending on the patient's age and appendix position; during pregnancy, it might seem to come from the upper abdomen.

When to See a Doctor

• Immediate medical attention is required for severe abdominal pain.
• Schedule an appointment if symptoms of appendicitis are observed.

Causes

• Likely caused by a blockage in the appendix lining, leading to infection.
• Bacteria multiply, causing inflammation, swelling, and pus formation.
• Untreated, this may lead to a burst appendix.

Risk Factors

• Age: Most common in ages 10 to 30.
• Sex: Slightly higher risk in men than women.

Complications

• Burst Appendix: Spreads infection throughout the abdomen (peritonitis), needing immediate surgery.
• Abscess Formation: A pocket of pus in the abdomen, often requiring drainage and antibiotics, followed by appendix removal.

Related Information

• Associated Procedures: CT scan, ultrasound, urinalysis.
• Products & Services: Mayo Clinic Family Health Book, Mayo Clinic Health Letter.

Additional Resources

• For more detailed information on diagnosis and treatment, refer to related sections and resources provided by Mayo Clinic.