Chrones Disease and Ulcerative Colitis are they different?

The simple answer is, yes. Chrones disease is different to ulcerative colitis although in many ways they are quite similar and it is quite common for an incorrect diagnosis to be given.

In which ways do Chrones Disease and ulcerative colitis differ?

Ulcerative colitis causes an inflammation only in the colon (which is called the colitis) and or the rectum. On the other hand Crohn's disease can cause inflammation in your rectum, colon, small intestine and sometimes even in your stomach, mouth and oesophagus.

The actual inflammation in Chrones disease is also different from ulcerative colitis because except in the very worst cases, the inflammation of ulcerative colitis only seems to affect the superficial layers of the inner lining of the bowel, whilst that of Chrones can be much worse. The inflammation of Chrones disease tends to be concentrated in some areas more than others and affects layers of the bowel that are deeper than the superficial inner layers. Therefore, the affected areas of the bowel in Chrons disease often has deeper ulcers with normal lining between these ulcers.

So as you can see whilst the two diseases are similar in many respects, they are also different.