Rectal bleeding: Difference between revisions
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*[[Intestinal ischaemia]] - blood in stool [[abdominal pain]] on digestion (couple of hours after eating), [[weight loss]], [[nausea]], [[vomiting]], [[diarrhoea]], [[tachycardia]], [[constipation]] | *[[Intestinal ischaemia]] - blood in stool [[abdominal pain]] on digestion (couple of hours after eating), [[weight loss]], [[nausea]], [[vomiting]], [[diarrhoea]], [[tachycardia]], [[constipation]] | ||
*[[Angiodysplasia]] - just blood loss, sometimes [[melaena]]. | *[[Angiodysplasia]] - just blood loss, sometimes [[melaena]]. | ||
*[[Haemorrhoids]] - gives you fresh red blood, [[bum pain]], | |||
===Differential Diagnosis=== | ===Differential Diagnosis=== | ||
Revision as of 15:51, 16 December 2009
Definition
Bleed per rectum/find blood in your poo. (If you put the blood in the poo afterwards, this does not count. That's just weird.)
Melaena is passage of black, tarry stools from blodd higher up in the GI tract which has been digested.
Epidemiology
Pathophysiology
Clinical and Associated Features
- Bowel cancer, IBD - fresh red blood in stools (possibly melaena depending on how high up the lesion is) weight loss, tiredness, pallor, loss of appetite
- Intestinal ischaemia - blood in stool abdominal pain on digestion (couple of hours after eating), weight loss, nausea, vomiting, diarrhoea, tachycardia, constipation
- Angiodysplasia - just blood loss, sometimes melaena.
- Haemorrhoids - gives you fresh red blood, bum pain,
Differential Diagnosis
- Serious - bowel cancer, IBD, intestinal ischaemia, meckel's diverticulum
- Less serious - angiodyslasia, haemorrhoids, anal fissure,