| Ulcerative colitis
|
Crohn’s disease
|
| Left colon and rectum are mainly involved
|
It can be located anywhere along the length of GIT and then usually continues to spread
|
| Haematochesia (bleeding from the lower portion of the colon)
|
Haematochesia is uncommon
|
| Rectal involvement almost always occurs
|
Rectal involvement is 50%
|
| Fistula formation is uncommon
|
Fistula formation is common
|
| Distribution of ulcers is irregular and shaggy
|
Here linear ulcers occur with transverse fissures giving cobblestone appearance
|
| Bowel strictures are rare
|
Bowel strictures are common
|