Ultimately, they spread (metastasized) to distant organs such as the liver, lungs, brain, and bones. Left untreated, these cancers grow and eventually spread through the colon wall to involve the adjacent lymph nodes and organs. Most colon cancers are adenocarcinomas-tumors that develop from the glands lining the colon's inner wall. Picture of colon (colorectal) cancer and polypĬolon cancer is the transformation of normal cells to abnormal cells in the colon. Causes of hemorrhoids include situations that increase pressure within the hemorrhoidal blood vessels such as straining to have a bowel movement (due to constipation or diarrhea), prolonged sitting, inactivity, low fiber diet, obesity, pregnancy, colon cancers, liver disease, inflammatory bowel disease ( IBD), anal intercourse, and spinal cord injury.Causes of colon cancer include adenomatous polyps, genetic abnormalities, inflammatory bowel disease ( ulcerative colitis or Crohn's colitis, past or present cancers ( breast, uterine, or ovarian), a family history of colon cancer, obesity, smoking, and possibly diet.Pain, which increases with swelling of an external or ruptured hemorrhoid.Signs and symptoms of internal, external, and thrombosed hemorrhoids that do not occur with colon cancer may include:.Studies suggest that the average duration of symptoms of colon cancer (from onset to diagnosis) is 14 weeks.Unexplained or persistent nausea or vomiting.Symptoms of bowel obstruction such as abdominal distention or pain.Changes in the frequency of bowel movements. Signs and symptom of colon cancer (when they do occur) that do not occur with hemorrhoids may include: Colon cancer symptoms may not be noticeable until the disease has progressed.The feeling as if you haven’t finished a bowel movement.Signs and symptoms of colon cancer and hemorrhoids that are similar include:.There are three types of hemorrhoids, internal, external, and thrombosed. Hemorrhoids are swollen and enlarged veins in the lower part of the rectum and the anus.Colon canceris the growth of abnormal cells in the colon ( large intestine).Most colorectal cancers arise from adenomatous polyps.
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