This site is intended for healthcare professionals

Go to /sign-in page

You can view 5 more pages before signing in


Last reviewed dd mmm yyyy. Last edited dd mmm yyyy

Authoring team

The severity of ulcerative colitis can be assessed on the basis of:

  • bowel frequency - less than four motions per day is considered mild, more than six is severe.
  • rectal bleeding
  • temperature - patients with mild disease are apyrexial, those with severe disease may be higher than 37.8øC
  • haemoglobin of less than 10.5 is considered severe, greater than 11 is mild
  • ESR of less than 30mm per hour is mild, greater than this is severe
  • tachycardia is related to severity
  • low albumin - below 30g per litre implies severe disease (1)

So the severity of disease activity of Ulcerative colitis can be graded as:

  • mild
    • less than four stools daily, with or without blood
    • without systemic disturbance
    • normal ESR and CRP values
  • moderate
    • four to six stools a day with minimal systemic disturbance
  • severe
    • more than six stools a day, containing blood
    • and evidence of systemic disturbance (fever, tachycardia, anaemia, or hypoalbuminaemia) (2)


Related pages

Create an account to add page annotations

Add information to this page that would be handy to have on hand during a consultation, such as a web address or phone number. This information will always be displayed when you visit this page