Bowel cancer is a malignant tumor of the intestinal mucosa. Cancer can develop in any part of the intestine, most often the disease occurs in the large intestine. Bowel cancer is very common and its incidence continues to increase, with the highest incidence in developed countries. Colon cancer is currently the second most common cancer among older people, according to Pannochka, an online publication for girls and women aged 14 to 35.. net The most susceptible to this disease are people in the age group after 45 years, men and women to the same extent, every 10 years the incidence increases by 10%. Colon cancer differs in histological structure, in 96% of cases it develops from glandular cells of the mucous membrane (adenocarcinoma).

Bowel Cancer Causes There are three main symptoms of bowel cancer:.

Genetic predisposition. If the family has cases of bowel cancer, then family members are at risk. Moreover, if any of the family members are diagnosed with intestinal polyposis, this also indicates the genetic prerequisites for the occurrence of malignant intestinal cancer..

Tumor and inflammatory bowel diseases. Colon cancers are usually preceded by chronic conditions called precancers. Such diseases include polyps, adenomas, chronic ulcerative colitis, Crohn's disease. These diseases are not malignant, but being untreated, they create preconditions for the occurrence of bowel cancer..

A diet low in plant fiber and rich in fatty protein foods. Such food contributes to the appearance of congestion in the intestines, constipation and mechanical irritation of the intestinal walls with dense caked feces. Gastroenterologists believe that such food has become the main cause of the spread of intestinal cancer among people living in economically prosperous countries..

Symptoms of bowel cancer The disease can be asymptomatic for a long time, often the first symptoms of bowel cancer are mistaken for colitis.. The main symptom of early bowel cancer is blood in the stool from the area affected by the tumor.. Blood can be invisible, so it is important to conduct a preventive fecal occult blood test for all people at risk.

Symptoms depend on the stage and location of the bowel cancer. Tumors of the right section are characterized by diarrhea, abdominal pain and blood in the stool, and subsequently iron deficiency anemia as a result of constant blood loss, for tumors of the left section - constipation and bloating. Signs of bowel cancer include persistent (lasting more than two weeks) dyspeptic symptoms: nausea, belching, feeling of heaviness in the abdomen, loss of appetite, irregular bowel movements.

Another characteristic symptom of bowel cancer is the appearance of an aversion to meat foods.. As the disease progresses, signs of body poisoning with tumor decay products join the listed signs of intestinal cancer:

a general decrease in tone, loss of strength, pallor of the skin, emaciation, increased nervousness.

In the later stages of bowel cancer, metastases appear - daughter tumors arising from the spread of cancer cells through the lymphatic or blood vessels. Metastases of intestinal cancer through the lymphatic pathways are transmitted to regional lymph nodes, then to the lymph nodes of the small pelvis and mesentery, hematogenously - to the lungs and liver. The most common colon cancer metastases occur in the liver.

neboleem. net.