At present, there are more than 2.2 million new cancer cases and more than 1.6 million deaths from cancer in China every year. With the process of industrialization, environmental pollution and aging population, the incidence of urological tumors in China has been rising, among which bladder cancer, the leading urological tumor, has a greater relationship with the environment.
Not long ago, the International Agency for Research on Cancer under the World Health Organization released a report that there is sufficient evidence to show that exposure to air pollution can cause lung cancer, and the risk of bladder cancer will also increase accordingly, it can be said that the degree of cancer related to haze, in addition to lung cancer, the closest can be bladder cancer.
The bladder is a concentration of cigarette toxins It has been previously believed that smokers are at high risk of bladder cancer, but currently, the effects of haze on the bladder may not be less than smoking. The toxicity of cigarettes to the human body is not limited to the lungs, after gas exchange through the lungs, nicotine and other harmful substances will enter the bloodstream, and with blood circulation, participate in the whole body metabolism. Finally, through the kidney filtration, the urine with nicotine and other harmful substances will gather in the bladder.
It can be said that the bladder is the concentration of cigarette toxins. Although there is no clear study to show who is more or less harmed by smoke and haze on bladder, but to prevent bladder cancer, you must avoid exposure to high-risk factors in daily life – smoking or second-hand smoke, and also stay away from intersections and traffic jam-prone roads with more serious air pollution to reduce the damage of haze on bladder.
High risk factors for bladder cancer 1. Smoking: Some studies show that the risk of bladder cancer among smokers is twice as high as that of non-smokers. Among them, those who smoke ordinary cigarettes have the highest prevalence, while those who smoke cigars have a relatively low risk.
2.Bad diet structure: People who eat nitrate-containing foods and high-fat diet for a long time have a higher prevalence.
3.Chronic infection: for example, long-term chronic urinary tract infection.
4.Carcinogenic substances: The risk of developing carcinogenic substances is increased by 20% for those who are exposed to them for a long time. The effects of these carcinogens are often insidious and take a long time to manifest, sometimes even 30 to 50 years. Of course, this risk is also related to the duration of exposure, the amount of exposure and the type of carcinogen. Some high-risk occupations include: dye workers, printers, shoe workers, and truck drivers. The dangerous chemicals are mainly from dyes, paints, inks and aromatic amines contained in artificial leather.
5, certain chemotherapy drugs: for example: cyclophosphamide and arsenic, etc.
6, schistosomiasis infection: this mainly occurs in some backward countries, especially in northern Africa.
7.Age: The incidence of bladder cancer increases with age in people over 40 years old. Most of the bladder cancer patients are over 60 years old. Thus, some scholars suggest that people over 40 years old should be alert to the occurrence of bladder cancer, especially when they find hematuria, they should go to the hospital in time.
8.Gender: The incidence rate of men is 3-4 times higher than that of women.
9.Race: In the United States, the incidence rate of bladder cancer among Caucasians is 2 times higher than that of African Americans, Asian Americans, Hispanic Americans and Native Americans. Among them, the incidence rate is the lowest among Alaska natives.
10.Family history: People who have grandparents with bladder cancer will have a higher rate than others.