What should you know about pediatric ulcerative colitis?

Children may have repeated diarrhoea, blood or mucus in the stool, abdominal pain, urgency, or tiredness. Reduced appetite, slower growth, weight change, fever, and needing the toilet at night can also occur. Symptoms often vary over time, with calmer periods and flares. These features can have other causes, so they do not establish the diagnosis on their own.

Assessment may include a history, examination, blood and stool tests, and sometimes imaging or a bowel examination arranged by a paediatric gastroenterology team. The aim is to check inflammation, nutrition, growth, and whether another condition better explains the symptoms.

Arrange a GP or paediatric appointment and keep a brief record of stool frequency, visible blood, pain, fever, appetite, medicines, and missed school. Bring growth information if available. Encourage fluids and regular nourishing meals unless the child’s clinician has advised a specific diet. Do not start restrictive diets or anti-diarrhoeal medicines without advice.

Treatment can involve medicines to settle bowel inflammation, support during a flare, and ongoing monitoring of growth and nutrition. A specialist may adjust the plan according to symptoms, test results, and how the child responds.

Seek urgent medical care for heavy or repeated rectal bleeding, severe or steadily worsening abdominal pain, a swollen abdomen, persistent vomiting, faintness, confusion, marked sleepiness, or signs of dehydration such as very little urine and a dry mouth. A child who looks seriously unwell needs emergency assessment.

Ask which tests are needed, how the diagnosis will be confirmed, what symptoms should trigger a same-day call, how treatment may affect school and activities, and how growth and nutrition will be followed.