Wednesday, June 1, 2011

Colorectal cancer symptoms


High fat leads to an increase in bile acid production and bile acids are promoters of carcinogenesis

Symptoms of colorectal cancer



Cancer often has no specific symptoms, so it is important that people limit their risk factors and undergo appropriate cancer screening. Most cancer screening is specific to certain age groups and your primary-care student will undergo what screening to action depending on your age. People with risk factors for cancer (for example, smokers, heavy alcohol use, high sun exposure, genetics) should be acutely alive of potential cancer symptoms and be evaluated by a physician if any develop.

Local symptoms are more likely if the growth is located fireman to the anus. There haw be a change in viscus habit (new-onset constipation or symptom in the absence of another cause), and a feeling of incomplete defecation (tenesmus) and change in diameter of stool; tenesmus and change in stool shape are both characteristic of rectal cancer. Lower gastrointestinal bleeding, including the passage of gleaming red murder in the stool, haw inform colorectal cancer, as haw the increased presence of mucus. Melena, black stool with a tarry appearance, normally occurs in bunk gastrointestinal injury (such as from a duodenal ulcer) but is sometimes encountered in colorectal cancer when the disease is located in the first of the super bowel.

A growth that is super enough to modify the entire lumen of the viscus haw cause viscus obstruction. This situation is characterized by constipation, abdominal pain, abdominal distension and vomiting. This occasionally leads to the obstructed and distended viscus perforating and causing peritonitis.

Certain topical personalty of colorectal cancer embellish when the disease has embellish more advanced. A super growth is more likely to be detected on feeling the abdomen, and it haw be detected by a student on physical examination. The disease haw assail another organs, and haw cause murder or expose in the urine (invasion of the bladder) or vaginal discharge (invasion of the female reproductive tract).

If a growth has caused chronic occult bleeding, iron deficiency anemia haw occur; this haw be old as fatigue, palpitations and detected as pallor (pale attendance of the skin). Colorectal cancer haw also lead to weight loss, mostly due to a decreased appetite.

More unusual constitutational symptoms are an unexplained feverishness and one of several paraneoplastic syndrome. The most common paraneoplastic syndrome is thrombosis, usually unfathomable vein thrombosis.

Colorectal cancer most commonly spreads to the liver. This haw go unnoticed, but super deposits in the liver haw cause jaundice and abdominal pain (due to stretching of the capsule). If the growth deposit obstructs the bile duct, the jaundice haw be accompanied by another features of biliary obstruction, much as discolour stools.




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