If a person has polyps on the internal surface of the colon it is exposed to the risk of developing colorectal cancer it these polyps transform into cancerous polyps.Patients come at the hospital because they feel tired, they are constipated, or have diarrhea for more than a week. Sometimes people observe that their stool is much thinner than before and that it comes with blood. They might be feeling abdominal pain, cramps, and bloating.
Most of the patients loose a lot of weight in a short period of time and have a lack of appetite.Those who have adopted western diets, are obese, are smoking and also follow a diet that is rich in proteins and fats and low in fiber are at risk to develop colorectal cancer.
There are several factors that increase the risk of developing colorectal cancer: those who have a family history of colon cancer or other type of cancer is at risk; those who drink alcohol and follow an improper diet can develop this disease. Also, people who suffer of Crohn’s disease, ulcerative colitis, diabetes, and familial adenomatous polyposis are exposed at a greater risk than others. There is a type of nonpolyposis colorectal cancer syndrome which also occurs in the same family members but now people who are at risk can be identified through genetic screening.