The appendix is a small, finger-shaped pouch attached to the beginning of the large intestine in the lower right side of the abdomen. When it becomes inflamed and blocked, pressure builds inside. If left untreated, the appendix can rupture — releasing bacteria into the abdominal cavity and causing a life-threatening infection. Appendicitis can occur at any age but is most common between the ages of 10 and 30.
Classic Symptoms of Appendicitis
The symptoms of appendicitis tend to follow a recognisable sequence:
- Pain around the navel: The pain typically begins as a dull ache around the belly button or as generalised abdominal discomfort, often accompanied by nausea and loss of appetite.
- Pain migrates to the lower right abdomen: Over several hours to a day, the pain shifts and concentrates in the lower right quadrant — this is where the appendix sits, and this migration is the most distinctive feature of appendicitis.
- Pain that worsens steadily: Unlike ordinary stomach aches, appendicitis pain intensifies progressively and does not ease with rest or over-the-counter remedies.
- Low to moderate fever: Usually develops alongside or shortly after the abdominal pain begins.
- Nausea, vomiting, and loss of appetite: Almost always present.
- Tenderness and guarding: The abdomen feels tender, especially when pressure is applied to a specific point in the lower right. Releasing sudden pressure (rebound tenderness) is a classic sign of peritoneal irritation.
Warning Signs of a Ruptured Appendix — Seek Emergency Care Immediately
If the appendix ruptures, you may notice:
- A sudden, brief reduction in pain — followed by pain spreading across the entire abdomen and becoming more severe.
- The abdomen becomes rigid and extremely painful to touch.
- High fever (above 38.5°C / 101.3°F) with chills.
- Extreme weakness and pale or ashen skin.
This is a medical emergency. Call for an ambulance or go to the emergency room immediately.
Conditions That Can Be Mistaken for Appendicitis
Appendicitis does not always present in a textbook fashion, and several other conditions can produce similar pain:
- Gastroenteritis or food poisoning (though this pain is usually diffuse, not localised to the lower right).
- In women: ovarian cyst rupture or torsion, ectopic pregnancy, or pelvic inflammatory disease.
- In children: symptoms are often less typical — fever and vomiting may dominate before localised pain develops.
Do not take painkillers, antacids, or laxatives before reaching the hospital — these can mask symptoms and delay an accurate diagnosis.
Diagnosis and Treatment
Doctors diagnose appendicitis through physical examination combined with a blood test (looking for an elevated white blood cell count), an abdominal ultrasound, or a CT scan. Treatment is surgical removal of the appendix — either by laparoscopy (keyhole surgery) or open surgery. When performed before the appendix ruptures, the procedure is safe, effective, and recovery is usually straightforward.
Time is the critical factor in appendicitis. At Ky Hoa Medical Center, our surgical team and emergency department operate around the clock to assess and treat suspected appendicitis rapidly. If you or someone you know is experiencing pain matching these descriptions — particularly pain that has moved to the lower right abdomen — do not wait. Come in immediately.