“Bladder cancer” is one of the most common tumors in urology, and its incidence rate has been on the rise in recent years. The most common age of onset is around 65 years old, and the incidence of bladder cancer is rarely found below 40 years old, but due to China’s special conditions such as a large population base, bladder cancer patients under the age of 40 are not rare, so it is a difficult task for the general public to have a better understanding of bladder cancer and to make this kind of popular knowledge accessible to the common people, especially to those who are in the high prevalence of the disease, the middle-aged and elderly. It is a difficult task for the middle-aged and the elderly, but we must try our best to do it, which is the kindness of a doctor, “Therefore, the sages do not treat the disease and treat the disease before it is diagnosed, and they do not treat the disorder before it is diagnosed, and this is the meaning of the saying also. If the disease has become after the medicine, chaos has become after the treatment, such as thirst and wear a well, bucket and cast cone, is not late!” The following is a list of the most common diseases that can be treated after the disease has become a reality 1. Is bladder cancer common? Is it fatal? (1) “Bladder Cancer” in the ranking of malignant tumors: “Bladder Cancer” incidence rate is ranked in the whole body of malignant tumors (lung cancer, liver cancer, pancreatic cancer, etc.) in the seventh place, the chance of getting sick is about 11 out of 100,000 (11/100,000), if lung cancer is the end of the life of the big devil, that “bladder cancer” may be the human body cancer inside the relatively weak damage force of the little monster, and it is to the tumor in advanced stages, Moreover, it develops more slowly to the late stage of tumor, metastasis of tumor, and most of the cases are relatively mild. Patients who are detected earlier and treated scientifically can prolong their life for more than 10-20 years. (2) Bladder cancer is different between men and women, and in different regions: the ratio of men and women suffering from bladder cancer is 3:1, with men being three times more common than women, and the incidence and death rate of bladder cancer in urban areas are significantly higher than those in rural areas. (3) “Bladder Cancer” should be analyzed specifically: “Bladder Cancer” is the most common urological malignant tumor, but it is not the most fatal urological malignant tumor (renal cancer is the first). It is the fourth most common malignant tumor causing death (tumor cause of death spectrum), accounting for about 4% (four out of 100 malignant tumor deaths are bladder cancer patients). However, there are very few bladder cancers that are highly malignant, which are usually found in advanced stages and have metastasized to other organs. 2. What does the bladder do? The work of bladder is simply in our urinary system (kidney, ureter, bladder, anterior urethra) inside the human body sewer, it is like a sewage reservoir in the sewer, when the sewage is stored to a certain amount, it is necessary to open the gate to discharge. At the same time, its location, shape, size, thickness of the bladder wall will change with the amount of urine, the normal adult bladder capacity of about 350-500ml, when the accumulation of urine to a certain extent, it will be conditioned to launch, transmission of information, the realization of urination, or else have to run to the toilet as soon as there is urine who can not afford to eat. If you have “bladder cancer”, the tumor will occupy the limited space in the bladder, so that the urine capacity will be reduced and the frequency of urination will be increased; for some patients who need to partially or completely remove the bladder, how to urinate is also a big problem, which needs to be handled carefully. 3. Factors leading to “bladder cancer”? (1) Bad diet: bladder is a sewage storage room in the urinary tract, people eat in, drink some bad things will form urine excretion here, such as a variety of food additives, when too much toxins contained in the stored urine and for a long time, will cause irritation to the tissue mucous membranes, which will then become a tumor. (2) Smoking is harmful to the bladder: “Smoking” is the primary risk factor for bladder cancer, and the chance of bladder cancer in men is about three times higher than that in women. 50-60% of bladder cancer patients have a history of smoking. The prevalence rate of bladder cancer in smokers is 4-6 times higher than that of the general population, and the incidence rate will increase with the prolongation of smoking. (3) The price of beauty: The second risk factor for bladder cancer is long-term contact with chemicals, such as those who are engaged in the manufacturing industries of printing and dyeing, petrochemicals, leather, etc., or those who have been dyeing their hair for a long time, or who are exposed to dyes, paints, rubbers, etc. Most of these contact substances contain more benzene, ammonia, naphthalene, and other carcinogens, which are easy to make the bladder become “cancerous”. These factors are easy to make the bladder be “cancerous”. (4) Other: It is also related to family genetics, individual differences, living and eating habits, occupational characteristics and other factors. (4) What are the discomforts of having “bladder cancer”? The majority (more than 90%) of “bladder cancer” patients initially show hematuria, some urine looks like watermelon water, while some is similar to water after washing meat foam, with the following main characteristics: painless, intermittent (sometimes there is hematuria visible to the naked eye and sometimes there is not), visible to the naked eye throughout the whole process of urination (usually the urine appears bloody throughout the process of urination), or microscopic hematuria (the urine routine report of the hospital shows that there are red blood cells in the urine). (the urine routine report from the hospital shows that there are red blood cells in the urine). (5) Treatment level of bladder cancer In the treatment of bladder cancer, the treatment plan is chosen according to the patient’s own specific physical condition, the stage and grading of the tumor, the way of growth and the number of tumors, etc.: (1) Surgery: Retention of bladder treatment: minimally invasive surgery without incision by electrolysis of the bladder tumor through the urethra; Partial or total bladder resection treatment: in the case where electrolysis is unable to solve the problem, partial or total bladder resection would be performed. Partial or total cystectomy is performed. After total cystectomy, the patient undergoes urinary diversion. Some patients with suitable conditions can receive in situ neobladder, which greatly improves the quality of life of patients after cure. (2) Chemotherapy: after radical cystectomy for muscle invasive bladder cancer, up to 50% of patients will develop metastasis, and the 5-year survival rate is 54.5%～68%. Bladder cancer is more sensitive to cisplatin-containing chemotherapy regimen, and the total effective rate is 40%～75%, of which 12%～20% of patients will get complete remission of localized lesions, and about 10%～20% of patients can get long-term survival. (3) Radiotherapy: If the patient is not willing to undergo radical cystectomy in order to preserve the bladder, or the patient’s systemic condition can not tolerate radical cystectomy, or the tumor can not be completely removed by radical surgery and the tumor can not be removed, bladder radiotherapy or chemotherapy + radiotherapy can be used.