If you suspect appendicitis, go to the hospital now. Appendix pain is always an emergency, and there is no safe version of “wait and see” at home. The risk of the appendix rupturing is negligible in the first 12 hours of symptoms but climbs to about 8% within the first 24 hours. After that, the risk continues to rise roughly 6% for every additional 24-hour window you wait.
The Classic Pain Pattern
Appendicitis typically starts as a vague ache around your belly button. Over the next several hours, the pain migrates to your lower right side, settling roughly one-third of the distance between your right hip bone and your belly button. This migration is one of the most reliable early clues. The pain tends to sharpen and intensify rather than come and go, and it gets noticeably worse when you walk, cough, or make any jarring movement.
Not everyone follows this textbook pattern. If your appendix sits behind your colon rather than in front of it, you might feel pain deeper in your back or hip area. You may instinctively flex your right hip to get relief. In pregnant women, the growing uterus can push the appendix upward, so pain may appear in the right flank or even the upper right abdomen during the second and third trimesters, rather than the classic lower-right spot.
Symptoms That Signal an Emergency
Any combination of the following warrants an immediate trip to the emergency room:
- Lower right abdominal pain that is steady and worsening
- Rebound tenderness: pressing on the painful area and then releasing hurts more than the pressure itself
- Fever (present in up to 40% of appendicitis cases)
- Nausea, vomiting, or complete loss of appetite alongside abdominal pain
- Abdominal rigidity: your stomach muscles tighten involuntarily when touched
You don’t need all of these to justify going to the hospital. Worsening right-sided abdominal pain on its own is enough. The scoring system doctors use to assess appendicitis likelihood weighs tenderness in the lower right abdomen more heavily than any other single symptom.
Signs the Appendix May Have Already Ruptured
A ruptured appendix sometimes announces itself with a brief, deceptive moment of relief. The intense, localized pain may suddenly ease as pressure inside the appendix is released. Within hours, the pain returns, but this time it spreads across your entire abdomen as infection spills into the abdominal cavity. You may develop a high fever, your abdomen may become rigid and swollen, and you’ll feel significantly sicker overall. This progression from localized pain to widespread abdominal pain is a hallmark of peritonitis, a life-threatening infection, and requires emergency care without delay.
How Symptoms Differ in Children and Older Adults
Children, especially those under five, often can’t describe or pinpoint their pain. Standard physical exam techniques like pressing on the abdomen tend to provoke crying and generalized tensing that makes it hard to tell what’s actually going on. One practical clue: a child with appendicitis typically cannot jump. Pediatric emergency doctors sometimes use a “jump test,” asking a child to hop or reach for something overhead. A child who refuses, stops mid-jump, or bends forward clutching their stomach is showing a meaningful sign of abdominal inflammation. Loss of appetite and refusal to eat are also more prominent in children than adults. Adolescents, on the other hand, tend to downplay or deny their pain.
Older adults present the opposite problem. Physiological changes with aging can dull pain perception, weaken fever responses, and make localization of symptoms less precise. An older person with appendicitis may report only mild discomfort or no fever at all, even when the inflammation is severe. This is one reason appendicitis in elderly patients is more likely to be diagnosed late, after the appendix has already ruptured. If an older family member has even vague abdominal pain with nausea or a change in appetite, err on the side of getting it checked.
What Happens at the Hospital
The emergency room visit typically starts with a physical exam and blood work. Doctors will press on your abdomen, check for rebound tenderness, and look at your white blood cell count for signs of infection. From there, imaging confirms the diagnosis.
A CT scan is the gold standard for adults. Its sensitivity for detecting appendicitis is about 94%, with a specificity of 95%, meaning it catches nearly all true cases and rarely gives a false alarm. Even a CT without contrast dye performs well, with about 93% sensitivity. Ultrasound is less accurate overall, catching roughly 75 to 90% of cases depending on the operator and patient, but it is the preferred first step for children and pregnant women because it avoids radiation exposure. If the ultrasound is inconclusive, a CT or MRI may follow.
Surgery vs. Antibiotics
For decades, surgery to remove the appendix was the only accepted treatment. That’s shifted. The 2025 guidelines from the World Society of Emergency Surgery now recognize that antibiotics alone are safe and effective for selected patients with uncomplicated appendicitis, meaning cases where the appendix hasn’t ruptured and there’s no abscess. If you’re a candidate for this approach, you’ll be treated with antibiotics in the hospital and monitored. The tradeoff is that some patients treated with antibiotics alone will have appendicitis recur later and eventually need surgery anyway.
When surgery is needed, it’s almost always done laparoscopically through a few small incisions. Most people go home the same day or the next, and recovery takes one to three weeks. A ruptured appendix complicates things significantly, often requiring a longer hospital stay, drainage of infection, and a more involved recovery period. This is the core reason timing matters: the difference between an uncomplicated and a complicated case often comes down to how quickly you got to the hospital.
When You’re Unsure
The most common reason people delay going to the hospital is uncertainty. The pain might feel like gas, a stomach bug, or food poisoning. A useful rule of thumb: abdominal pain that steadily worsens over 6 to 12 hours, settles on your right side, and doesn’t improve with antacids or a bowel movement is not a stomach bug. If the pain is bad enough that you searched for this article, that alone suggests you should go. Emergency departments evaluate and rule out appendicitis routinely. Getting checked and being told it’s something else is a far better outcome than waiting at home while your appendix deteriorates.