Stercobilin Health Dictionary

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Stercobilin: From 1 Different Sources

n. a brownish-red pigment formed during the metabolism of the *bile pigments biliverdin and bilirubin, which are derived from haemoglobin. Stercobilin is subsequently excreted in the urine or faeces.
Health Source: Oxford | Concise Colour Medical Dictionary
Author: Jonathan Law, Elizabeth Martin

Bilirubin

The chief pigment in human BILE. It is derived from HAEMOGLOBIN which is the red pigment of the red blood corpuscles. The site of manufacture of bilirubin is the RETICULOENDOTHELIAL SYSTEM. When bile is passed into the intestine from the gall-bladder (see LIVER), part of the bilirubin is converted into stercobilin and excreted in the FAECES. The remainder is reabsorbed into the bloodstream, and of this portion the bulk goes back to the liver to be re-excreted into the bile, whilst a small proportion is excreted in the urine as urobilinogen.... bilirubin

Faeces

Faeces, or stools, consist of the remainder of the food after it has passed through the alimentary canal and been subjected to the action of the digestive juices, and after the nutritious parts have been absorbed by the intestinal mucous membrane. The stools also contain various other matters, such as pigment derived from the BILE, and large quantities of bacteria which are the main component of human stools. The stools are passed once daily by most people, but infants have several evacuations of the bowels in 24 hours and some adults may defaecate only two or three times weekly. Sudden changes in bowel habit, persistent diarrhoea or a change from the normal dark brown (caused by the bile pigment, stercobilin) to very pale or very dark stools are reasons for seeking medical advice. Blood in the stools may be due to HAEMORRHOIDS or something more serious, and anyone with such symptoms should see a doctor.

Incontinence of the bowels, or inability to retain the stools, is found in certain diseases in which the sphincter muscles – those muscles that naturally keep the bowel closed – relax. It is also a symptom of disease in, or injury to, the SPINAL CORD.

Pain on defaecation is a characteristic symptom of a FISSURE at the ANUS or of in?amed haemorrhoids, and is usually sharp. Pain of a duller character associated with the movements of the bowels may be caused by in?ammation in the other pelvic organs.

CONSTIPATION and DIARRHOEA are considered under separate headings.... faeces


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