Why is colon cancer getting 'younger'? How are symptoms different from older adults? One article popular science

Colorectal cancer is the most common malignant tumor of digestive tract in China, with more than 560,000 newly diagnosed colorectal cancer patients every year.

　　The so-called colorectal cancer actually includes two major parts of the rectum and colon cancer, of which the incidence of rectal cancer is the highest, but the mortality rate of colon cancer is higher than the former.

　　Going back to 10 years ago, the age of onset of colorectal cancer in China tends to be aging. The more middle-aged and elderly people over 50 years old, the more the incidence rate will increase with age.

　　However, colon cancer has gradually shown a younger trend in recent years. A related research survey shows that the incidence of colon cancer in the population under the age of 50 is increasing year by year.

　　So the question is, why is colon cancer getting younger and younger, and what is the reason behind this?

1. Genetic aspects

　　A related research survey shows that colorectal cancer has a certain familial aggregation and genetic predisposition. In addition to the genetic susceptibility gene , there is also a direct relationship with familial adenomatous polyposis , an autosomal dominant disorder.

　　The next generation may develop multiple adenomas before the age of 20, and even hundreds of adenomas will grow in the intestine. If there is no timely examination, resection and treatment , the future cancer rate will be almost equal to 100%;

2. Diet

　　It has to be said that in recent years, China's living standards have made a qualitative leap and improvement, which is especially reflected in the diet. All kinds of delicacies that could only be eaten on New Year's and festivals have long since become family meals.

　　But because of this, long-term calorie intake exceeding the standard, long-term consumption of a large amount of red meat, and long-term consumption of a large amount of processed meat products not only cause obesity, but also increase the risk of colorectal cancer . Some studies have pointed out that the more the BIM index exceeds the standard, the greater the risk of bowel cancer.

　　In this case, what is the difference between young people suffering from colon cancer and old people?

　　1. The degree of malignancy

　　Many people arbitrarily believe that the physical quality of young people is better than that of the elderly, so even if they have cancer, it is easy to overcome cancer.

　　As everyone knows, some young people have been affected by poor diet and living habits, and their bodies have already shown a sub-health state. Relevant studies have pointed out that colon cancer in young people is mostly some poorly differentiated types, with a relatively high degree of malignancy and poor prognosis;

2. Discovery is late

　　Many young people don't really care about their physical condition, and colon cancer is a disease that is very good at disguising. Its early symptoms are very similar to enteritis, hemorrhoids, constipation and other problems. Young people tend to arbitrarily think that they have these problems, so they don't take symptoms seriously.

　　And the tolerance of young people is higher than that of old people. In this case, it may affect the early detection and diagnosis of colon cancer . In China, most young patients with intestinal cancer are diagnosed after serious problems such as intestinal obstruction and perforation occur . At this time, the patients have already missed the best time for diagnosis and treatment;

3. Transfer

　　A related research survey shows that if young women develop colon cancer, the disease not only develops relatively quickly, but also is more likely to have ovarian metastasis. The probability of cancer cells invading the ovary can even reach about 12%. On the contrary , in elderly female colon cancer patients, the metastasis rate is not so high , and the metastasis rate is relatively slower.

　　In a word, bowel cancer has no age limit, and any age group may suffer from the disease. Therefore, even young people cannot relax their vigilance. If they have symptoms such as bloody stools, abdominal pain, and disordered bowel habits recently, they should seek medical screening in time.

　　In addition, it is also necessary for patients with a family history of bowel cancer or adenoma disease, obese people, and chronic bowel diseases to seek regular medical attention for bowel cancer screening.