
Dr Kieron Lim
Senior Consultant Gastroenterologist
MBBS (University of London), MRCP (UK), FRCP (Edinburgh), FAMS (Gastroenterology)
Crohn’s disease is a long-term condition that not only disrupts the normal functioning of the gastrointestinal system but also affects quality of life due to its unpredictable flare-ups. For those living with it, the condition can cause physical discomfort, emotional stress and disruptions to overall well-being.
Although inflammatory bowel disease (IBD) still affects a relatively small proportion of Singaporeans, cases have been rising steadily in recent years, especially among younger individuals
Crohn's disease is a type of inflammatory bowel disease (IBD) that causes chronic inflammation of the digestive system. While it can affect any part of the gastrointestinal tract, it most commonly impacts the last section of the small intestine (ileum) and the colon. The inflammation in Crohn's disease is often patchy, occurring in segments with healthy, unaffected tissue in between.
The exact cause of Crohn’s disease remains unclear. However, it is believed to result from a combination of genetic predisposition, environmental triggers and immune system factors. In people with Crohn’s disease, the immune system mistakenly attacks healthy cells in the digestive tract, leading to inflammation, ulcers and potential complications such as scarring or bowel obstruction.
The presentation of Crohn’s disease varies among individuals, depending on the location and severity of inflammation in the digestive tract. Below are the most common symptoms:
These symptoms can range from mild to severe and may come and go. Thus, individuals should monitor their condition closely and seek medical advice when symptoms worsen.
Although once considered rare, Crohn’s disease is becoming more common in Singapore. This increase may be linked to dietary shifts toward processed foods, higher stress levels and environmental factors. Most patients are diagnosed between the ages of 20 and 40, affecting individuals in their most productive years.
Diagnosing Crohn’s disease can be complex, as its symptoms may overlap with other gastrointestinal conditions such as irritable bowel syndrome (IBS) or infections. Doctors use a combination of medical history, physical examinations and diagnostic tests to confirm the condition.
Common diagnostic methods for Crohn’s disease include:
There is no known cure for Crohn’s disease in Singapore, but it can be managed effectively with a combination of therapies. Each treatment plan is tailored based on the severity of the disease, as well as the patient’s overall health.
Crohn's disease is first managed with medications to control symptoms and prevent flare-ups. Common medications include:
Lifestyle changes play a significant role in managing symptoms and improving quality of life. Key lifestyle adjustments include:
When medications are insufficient or complications like bowel obstruction, fistulas or abscesses arise, surgery may be necessary. Many patients may eventually require surgery at some point to remove damaged portions of the bowel.
Procedures typically involve removing diseased portions of the intestine (resection) or repairing complications like fistulas. While surgery is not curative, it can provide long-term symptom relief and reduce reliance on medications.
While Crohn’s disease can be challenging, many individuals lead fulfilling lives by adopting the right strategies and support. The unpredictable nature of the condition means that individuals must be prepared in managing symptoms and preventing flare-ups to maintain well-being and quality of life.
Patients in Singapore can access a growing range of resources, including:
Crohn’s disease is a lifelong condition, but with early intervention, appropriate treatment and the right support, patients can lead full and productive lives. In Singapore, increasing awareness and access to professional care can help improve outcomes for those affected by this complex disease.
If you or someone you know is struggling with Crohn’s disease, reach out to qualified specialists like Dr Kieron Lim for guidance and assistance. By staying informed, you can manage the condition effectively and take control of your health.

Meet Our Specialist
Dr Kieron Lim
MBBS, University of LondonMember, Royal College of Physicians (UK)Fellow, Academy of Medicine (Gastroenterology) SingaporeFellow, Royal College of Physicians (Edinburgh)
Dr Kieron Lim is a senior consultant specialising in Gastroenterology and Hepatology, providing comprehensive care for patients with gastrointestinal conditions in Singapore. His expertise extends to disorders affecting the oesophagus, stomach, colon, liver, pancreas, and gallbladder. Through his experience, Dr Lim enhances patient outcomes by facilitating early detection and timely medical interventions.