What should you know about etiology of ulcerative colitis?

The condition causes ongoing or relapsing inflammation in the inner lining of the rectum and colon. The immune system responds in a way that is not properly switched off, although the exact trigger is not known. Family history can increase susceptibility, while changes in the gut microbiome and environmental exposures may influence when symptoms begin or flare. Ulcerative colitis is not caused by a contagious germ, and it is not simply the result of stress or a particular meal. Stress can still affect how symptoms feel and how well someone copes.

Arrange a GP Consultation for ongoing diarrhoea, blood or mucus in the stool, urgency, abdominal pain, fatigue or unexplained weight loss. Assessment may include a history, examination, blood tests, stool tests and referral for a bowel examination. These checks help distinguish ulcerative colitis from infection, medication effects, irritable bowel symptoms and other inflammatory conditions. Keep a record of stool changes, pain, food, medicines and recent travel, and do not stop prescribed treatment without advice.

Seek urgent care for heavy rectal bleeding, severe or rapidly worsening abdominal pain, a swollen abdomen, repeated vomiting, faintness, confusion, high fever, or inability to keep fluids down. Prompt review is also needed when diarrhoea becomes frequent with marked weakness or dehydration. A flare can become serious even when the underlying cause has been present for a long time.

Ask which tests will check inflammation, whether a gastroenterology referral is needed, and how a flare should be managed. Discuss medicines, nutrition, vaccination, bone health and the timing of colorectal cancer screening as part of longer-term care.