Appendicitis is often associated with a sharp pain in the lower-right abdomen, but the pain may be less obvious at first. It can begin as vague or dull discomfort around the belly button or upper/central abdomen before becoming more localised as inflammation progresses.
Where the pain starts, how it changes and what other symptoms develop may provide important clues, but appendicitis does not always follow the same pattern. Understanding this progression can help you recognise when abdominal pain warrants prompt medical assessment.
Appendicitis pain commonly begins around the belly button or in the upper/central abdomen. At this early stage, the discomfort may feel dull, poorly localised or difficult to pinpoint to one particular spot.
This happens because early inflammation of the appendix initially stimulates nerves that do not precisely identify where the problem is occurring. As a result, the brain may interpret the pain as coming from around the belly button rather than directly from the appendix.
Early appendicitis pain may therefore be mistaken for indigestion, gastritis, trapped wind or a stomach infection, particularly when the discomfort is still relatively mild. Other symptoms may also begin around this time, including:
Not everyone experiences the same sequence of symptoms, and the location of the appendix can also affect where pain is felt.
As inflammation progresses and begins to irritate the lining of the abdominal cavity near the appendix, the pain typically becomes easier to localise. In the classic presentation, it moves from around the belly button to the lower-right side of the abdomen.
The pain may become more constant and more intense rather than coming and going. The affected area may also become increasingly tender.
Movement can make the pain more noticeable. Walking, coughing, taking a deep breath or travelling over bumps in a vehicle may aggravate the discomfort because these actions move or place pressure on the inflamed tissues.
Other symptoms may develop alongside the worsening pain, such as:
The progression can occur over several hours, although there is no fixed timeline that applies to everyone. Some people develop increasingly noticeable symptoms relatively quickly, while others may have a more gradual or less typical presentation.
Although appendicitis is most commonly associated with pain in the lower-right abdomen, the location can vary depending partly on where the appendix sits. For example:
Symptoms may also be less typical or harder to localise in young children and older adults.
Because of these variations, appendicitis cannot be ruled out simply because pain is not in the expected lower-right location. Doctors consider the location and progression of pain alongside other symptoms, examination findings and, where necessary, further tests.
Abdominal pain should be assessed promptly when it is persistent, worsening or accompanied by other symptoms that could suggest appendicitis. This is particularly important when pain becomes concentrated in the lower-right abdomen or becomes increasingly painful with movement or pressure.
Seek medical attention promptly if abdominal pain is accompanied by signs such as:
Prompt assessment is important because an inflamed appendix can eventually perforate, allowing infection to spread within the abdomen.
A doctor will usually ask where the pain started, how it has changed and whether other symptoms have developed. The abdomen may then be examined for tenderness and other signs of inflammation.
Blood tests may be performed to look for signs of infection or inflammation. Depending on the findings, imaging such as a CT scan or MRI may be used to help confirm the diagnosis or identify another cause of the pain.
If appendicitis is diagnosed, treatment commonly involves an appendicectomy to remove the inflamed appendix. This is often performed using laparoscopic (keyhole) surgery, although the appropriate surgical approach depends on the individual findings and whether complications such as perforation are present.
If you develop persistent or worsening abdominal pain that could be due to appendicitis, arrange a medical assessment rather than waiting for the pain to follow a particular pattern. Timely assessment can help determine the cause and whether surgical treatment is required.
At Teoh Colon, Rectum & General Surgery, we provide assessment and treatment for appendicitis and other general surgical conditions. This clinic is led by Dr Teoh Tiong Ann, a general and colorectal surgeon who performs appendix removal, including keyhole surgery where appropriate. Book an appointment with Dr Teoh for an evaluation and advice on the appropriate next steps. If the pain is severe, you can contact Dr Teoh urgently by going to the Urgent Care Centre of Mount Elizabeth Hospital (Orchard).
Book an AppointmentAppendicitis pain may feel intermittent or vague in its early stages, but it typically becomes more persistent as inflammation progresses. Pain that temporarily improves does not necessarily mean the problem has resolved. Persistent, worsening or recurring abdominal pain should be medically assessed.
Appendicitis pain can become more noticeable over several hours, but the rate of progression varies between individuals. There is no fixed timeframe for when symptoms will worsen or complications may develop. Persistent or worsening abdominal pain should therefore be assessed promptly rather than monitored for a set period.
It can. As inflammation begins to irritate the lining of the abdominal cavity, movements such as walking, coughing or taking a deep breath may make the pain more noticeable. However, pain with movement can have other causes and cannot confirm appendicitis on its own.
Gas and other digestive problems can cause abdominal discomfort similar to early appendicitis. Appendicitis pain, however, often becomes increasingly persistent, localised and tender over time. Because symptoms can overlap, worsening or persistent abdominal pain should be assessed rather than diagnosed based on symptoms alone. A physical examination, CT scan or MRI will assist accurate diagnosis.
Dr Teoh Tiong Ann
Consultant General and Colorectal Surgeon
MBBS (S'pore), M.Med (Surgery) (S'pore), FRCS (Edin), FAMS
Dr Teoh Tiong Ann is a Consultant General and Colorectal Surgeon with extensive experience in surgical care. He received subspecialty training at Cleveland Clinic Florida under Singapore's Health Manpower Development Plan and has been involved in professional surgical societies in Singapore and internationally. He currently practises at Mount Elizabeth Hospital.
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