diarrhea is a common symptom is usually self limited and usually requires only supportive care rest and clear fluids until it resolves. if the diarrhea persists diagnosis of the cause and further care may be needed. blood in the stool is never normal and should always be evaluated. the blood may be from a bleeding hemorrhoid; however other serious causes of bleeding need to be investigated. colitis is not the only cause of rectal bleeding. other causes include diverticulitis colon polyps anal fissures or cancer. chronic diarrhea can lead to dehydration and if severe enough dehydration may require treatment with fluids. the symptoms of dehydration may include: lightheadedness (dizziness) especially when going from the sitting or lying positions to the upright position. weakness. dry mouth. decreased output of urine. high fever associated with diarrhea may be a warning sign that a significant infection is present and may need evaluation by a health care practitioner and treatment. abdominal pain is not normal and while diarrhea may be associated with mild cramps if a person has moderate or severe abdominal pain he or she should seek medical care.
when should i contact my doctor about colitis?