Nearly 1% red blood cells retire everyday and those are replaced by fresh blood cells. These old blood cells are processed in the liver and later disposed. If there happens to be too many old red blood cells the yellow pigment builds up in the body, which results in the first stages of jaundice.
Even though jaundice is not a disease but it is a sign for many other diseases. Jaundice is very common among babies due to the immature functioning of the liver. It is not equipped to deal with the removal of bilirubin from the bloodstream. Jaundice occurs mainly due to liver failure but there are many other reasons by which it is affected. Bilirubin is a natural product arising from the normal breakdown of red blood cells in the body and is excreted in the bile, through the actions of the liver. Jaundice is most often the result of a disorder affecting the liver it can be caused by a variety of other conditions affecting for example the blood or spleen. It should be thoroughly investigated so that the underlying cause can be identified and treated.
The red blood cells in our circulation carry oxygen to all parts of the body and have a life span of about 120 days. At the end of their life they are broken down and removed from the circulation by special cells called phagocytes, which are found within the bone marrow, spleen and liver.
New red cells are of course continually manufactured and this also takes place within the