Pain in the lower right abdomen is one of the symptoms that cause the most worry — and understandably so, because that is where the appendix lies. However, not every such pain is appendicitis. This article explains what appendicitis typically looks like, which signs are genuinely concerning and when you should seek medical care immediately rather than wait.
Where the appendix is
The appendix is a small, tube-shaped structure hanging from the first part of the large bowel, in the lower right quadrant of the abdomen. When it becomes inflamed — usually because its lumen is blocked — the result is acute appendicitis, one of the most common causes of emergency abdominal surgery worldwide.
The typical picture: how the pain evolves
The most characteristic feature of appendicitis is not simply where it hurts, but how the pain moves. The classic sequence is:
- The pain starts around the navel or upper abdomen, as a vague, deep ache.
- Within a few hours it shifts and localises to the lower right quadrant, becoming sharper and constant.
- It is often accompanied by loss of appetite, nausea and a mild fever.
- The pain worsens with movement, coughing or the jolt of a car going over a bump.
This "migration" of pain from the centre to the lower right is one of the most reliable clinical signs. It does not always appear with textbook precision — especially in children, the elderly or pregnant women the picture can be atypical — but when present, it substantially raises suspicion.
A classic 'reassuring' finding that is actually dangerous: if severe pain suddenly eases and then returns much worse and spread across the whole abdomen, this may mean perforation (rupture) of the appendix — an emergency.
Signs that require immediate medical assessment
Seek medical care immediately — at a doctor or emergency department, without waiting — if abdominal pain is accompanied by:
- Lower-right pain that steadily worsens over a few hours.
- Fever together with abdominal pain.
- Persistent vomiting or inability to keep fluids down.
- A hard, tender abdomen that hurts even to light touch.
- Pain severe enough to prevent walking or that makes you double over.
- Dizziness, a racing heart or feeling faint together with the pain.
An important safety point: do not take strong painkillers or antibiotics 'blindly' to make the pain "pass" before you are examined — they can mask the picture and delay diagnosis. Also avoid laxatives or a heating pad on the abdomen.
How the diagnosis is made
The diagnosis of appendicitis is primarily clinical: it is based on the history and the physical examination of the abdomen by the surgeon. It is supplemented by blood tests (inflammatory markers) and, where needed, by ultrasound or CT, which confirm the diagnosis and rule out other causes. The aim is a timely and accurate diagnosis, avoiding both delay and unnecessary surgery.
Treatment: surgery and the role of antibiotics
The established treatment of acute appendicitis remains appendectomy — removal of the appendix, today almost always by laparoscopic (minimally invasive) technique. It is a safe operation with small incisions, a short hospital stay and rapid recovery. Read more on the page for acute appendicitis.
In recent years, large studies (such as the US CODA trial) have shown that in selected cases of uncomplicated appendicitis, treatment with antibiotics can be a reasonable first-line alternative. However, caution is needed: a significant proportion of patients who start with antibiotics eventually need surgery — around 3 in 10 within the first 3 months, with the rate rising over time. The risk is clearly higher when an appendicolith (a calcified stool within the appendix) is present.
There is no single answer for everyone. The choice between immediate surgery and antibiotics depends on whether the appendicitis is complicated or not, on the presence of an appendicolith, and on the patient's own priorities — and is always made together with the surgeon.
When appendicitis is complicated (perforation, abscess, peritonitis), surgery is generally necessary and urgent. This is precisely why early presentation matters so much: the sooner the diagnosis is made, the simpler and safer the treatment.
Is every lower-right pain appendicitis?
No. Many conditions cause pain in the same area — gastroenteritis, urinary infection, kidney stones, gynaecological causes, even simple constipation. That is why a medical assessment is essential; the characteristic shift of pain from the navel to the lower right, together with fever and loss of appetite, raises suspicion.
Can I take a painkiller until I see a doctor?
Better not to take strong painkillers or antibiotics without medical assessment, as they can mask the picture and delay diagnosis. Also avoid laxatives and heating pads. If the pain is severe or worsening, go to an emergency department promptly.
Is it dangerous to wait a day or two?
It can be. Untreated appendicitis can progress to perforation and peritonitis within hours to a few days. If there is suspicion, timely assessment is always preferable to waiting.
Is the operation major?
In the vast majority of cases it is done laparoscopically, through three small incisions, with a short hospital stay and quick return to activities. It is one of the most established and safe operations in general surgery.
Can it be treated with antibiotics alone?
In selected cases of uncomplicated appendicitis, yes — but around 3 in 10 patients eventually need surgery, with the risk higher when an appendicolith is present. The decision is individualised in consultation with the surgeon.