Crohn's Disease vs Ulcerative Colitis in Children
Dr Harveen Singh FRACP
Paediatric Gastroenterologist & Hepatologist | Reviewed 29 September 2025
Inflammatory bowel disease (IBD) is an umbrella term for chronic conditions that cause inflammation in the digestive tract. The two main types — Crohn's disease and ulcerative colitis (UC) — share some features but are distinct conditions with different patterns of inflammation, complications, and treatment approaches.
Key Differences at a Glance
| Feature | Crohn's Disease | Ulcerative Colitis |
| --- | --- | --- |
| Location | Any part of the GI tract (mouth to anus) | Large intestine (colon and rectum) only |
| Pattern | Skip lesions (patchy inflammation) | Continuous inflammation |
| Depth | Full thickness of gut wall | Mucosal (inner lining) only |
| Common symptoms | Abdominal pain, diarrhoea, weight loss, perianal disease | Bloody diarrhoea, urgency, cramping |
| Extraintestinal features | More common | Less common |
| Curative surgery | Not possible | Possible (colectomy) |
Symptoms in Children
Children with IBD often present differently from adults. Common features include:
IBD should be considered in any child with unexplained growth problems, chronic diarrhoea, or recurrent abdominal pain.
How Is IBD Diagnosed?
Diagnosis requires:
Treatment Approaches
IBD treatment in children aims to achieve and maintain remission, support normal growth, and minimise side effects.
For both Crohn's and UC:
Early, effective treatment is key to preventing complications and supporting healthy growth. Dr Harveen Singh FRACP provides specialist paediatric IBD care at clinics across Sydney.
Last reviewed by Dr Harveen Singh FRACP, Paediatric Gastroenterologist & Hepatologist
Concerned About Your Child?
Dr Harveen Singh FRACP sees children across Sydney at Bankstown, Westmead, St Leonards, and Campbelltown. A referral from your GP or paediatrician is required.