The main roles of the colon are the absorption of water and electrolytes in the proximal half and the depositing feces to eliminate them in middle distance. Because of these roles, movements in the colon are slow. These movements have two types: mixed and propellant. Colon irritations are intense and they are stimulating the parasympathetic nervous system, thing that can initiate intensive mass movements.

Epidemiological studies have tried to establish links between the incidence of colon cancer and geographical factors, dietary factors, relations with polyps, familial nature of some cancers or blood lost. The radiologist must know and must be able to recognize the concentration of these factors in a given case, in order to give a proper diagnostic and discover the smallest accidents or protrusions of colic mucosa.



A patient can notice mucous and blood in the stools for several weeks before thinking that something is wrong and going to the doctor. This happens in some cases because there is no pain associated with this symptom. So, mucus covered bowel movement and colon cancer can be developed. That is one of the symptoms that can tell you that you need to have a medical check.

However, a certain amount of mucus is regularly present in normal stools of healthy persons too. Although, the mucus can be present in the stool when a patient has hemorrhoids or intestinal parasites, mucus in stools may be sometimes the only symptoms in small or large intestinal polyps or cancer. The thing is that you have to be very careful about mucus covered bowel movement and colon cancer. It may not be very alarming at first but it can be the best change to detect the cancer before it develops and spreads to other parts of the body.



This has a big influence because the contraction of the colon muscles and the movement of the elements that it contains are made through nerves, impulses in colon or hormones control. This movement causes also the moving in the colon of the elements that were left after the digest made by the digestive system. In this process, water and some of the nutrients are absorbed in the body, while the other elements, called residues are left is the stool to be then eliminated. This is a normal process that happens in every normal body. Every day the contractions send the stool trough the colon determines a bowel movement. However, if the muscles do not contract, or if they do so, it is in the wrong way, the elements that are inside the colon do not move correctly. In these cases abdominal pain, constipation, or a sensation of incomplete stool movement can be present. It is necessary that the mucus be eliminated through a natural way, instead of forcing this process, because the body tends to restore it anyway.