How to prevent and treat breast cancer? Breast cancer is the most common malignant tumor among women. Since 1972, the incidence of breast cancer has been increasing year by year, and since 1990, breast cancer has become the first malignant tumor among women. In 1990, there were 150 cases of breast cancer surgery per year, but last year, there were more than 4300 cases. While the incidence rate is increasing, with the development of comprehensive treatment and early screening of breast cancer in recent years, the diagnosis of breast cancer is significantly earlier than 20 years ago. Most patients are now diagnosed at stage I II, whereas in the past such early stage patients were rare. In our hospital, the 5-year survival rate of stage I breast cancer patients after surgery has reached about 94%. The overall 5-year survival rate after treatment for patients at all stages has exceeded 80% or more. It is evident that the level of breast cancer treatment in China has been on par with international standards. Although we cannot achieve primary prevention in terms of the cause of breast cancer, we can achieve secondary prevention through the “three early” measures of early screening, early diagnosis and early treatment. Women should have a breast examination once a year, and women over 40 years old should have a mammogram or ultrasound examination every year. In terms of life, firstly, women should have children within a reasonable age of childbirth, either too early or too late will have an impact on the development of breast cancer. 25-30 years old is the recommended reasonable age of childbirth. After giving birth, breastfeeding should be done, which has a certain effect on the prevention of breast cancer. Secondly, high-fat diet should be reduced, especially for postmenopausal women, obesity is a high risk factor for breast cancer. Thirdly, physical exercise should be strengthened. Regular physical exercise can effectively reduce fat. Fourthly, you should reduce stress and reduce the mental pressure brought by work and life. In addition, the use of hormone-containing health products or cosmetics can also have an impact on the development of breast cancer. Breast cancer is the most dominant female malignancy for Chinese women, especially for women in Shanghai. Nowadays, the incidence of breast cancer is much higher than people can imagine. However, if we prevent it effectively and detect it in the early stage of the disease, breast cancer is actually not terrible. Among all tumor treatments, the treatment effect of breast cancer is relatively satisfactory. Therefore, once breast cancer is detected, it is important to actively cooperate with the treatment in order to achieve the desired treatment effect. In terms of treatment, patients do not necessarily lose their breast due to breast cancer, we have surgical options such as breast conservation and reconstruction. For HER-2 positive patients who could not be treated 10 years ago, we also have immunotherapy against HER-2 antibodies. As a result, survival rates for breast cancer have improved dramatically. How to prevent and treat colorectal cancer? Colorectal cancer is a very common malignant tumor, the fourth most common malignant tumor in the world, and the fourth and fifth most common among Chinese men and women respectively. In Shanghai, the incidence rate of colorectal cancer is much higher than the national level. In the past few years, the incidence rate of colorectal cancer has been increasing at a rate of 4% per year. Due to the change of human diet structure and lack of exercise, the incidence of colon cancer is greatly increased. Studies in the United States have shown that primary and secondary prevention of colorectal cancer play a vital role. 20 years ago, there was a 3% decrease in the incidence of colorectal cancer and a 2-3% decrease in mortality each year, mainly due to improvements in primary and secondary prevention. The Shanghai government has listed colorectal cancer screening as a major public service program in Shanghai since 2013. More than 2 million people have participated in colorectal cancer screening. Among the bowel cancers detected by screening, nearly 50% are stage I colorectal cancers, and the detection rate of colorectal polyps has also increased. Early management of colorectal polyps can reduce the incidence of future colorectal cancer by an extremely large amount. It is an effective measure supported by the government and mobilized by the whole population to combat the incidence of colorectal cancer. Treatment of tumors detected early has a favorable prognosis for patients, avoiding unnecessary radiotherapy and excessive surgery. I urge people of age 50-74 years old in Shanghai to actively participate in the Shanghai colorectal cancer screening and investigation program! How to prevent and treat urinary tract tumors? Common tumors of the urinary male reproductive system mainly include kidney cancer, bladder cancer and prostate cancer. In terms of prevention, the main focus is on early diagnosis. Regular annual physical examinations, such as ultrasound, urine routine, urine exfoliated cells and prostate PSA antigen examination. In terms of treatment, surgery is the main focus. If the tumor has local invasion, chemotherapy, endocrine therapy or immunotherapy can be added appropriately. For patients with advanced disease, systemic treatment is the main focus. For patients, first of all, they should establish the confidence that they can overcome these three malignant diseases and set their mindset right. This can enable the body’s resistance to improve. Secondly, standardized treatment and follow-up should be carried out in strict accordance with doctors’ instructions. Let’s fight against tumors through the joint efforts of doctors and patients! How to prevent and treat pancreatic cancer? The incidence of pancreatic cancer has been increasing year by year in recent years. According to Shanghai CDC statistics in 2012, pancreatic cancer rose to the 6th place among pancreatic tumors and the mortality rate rose to the 5th place. According to foreign studies, pancreatic cancer may overtake liver cancer to become the second deadliest solid tumor by 2030. We should have a clear understanding of pancreatic cancer. Smoking is recognized as the most important causative factor of pancreatic cancer. In addition, heavy alcohol abuse and excessive red meat diet can lead to pancreatic cancer. The general public, especially patients with family history of pancreatic cancer and patients with history of diabetes mellitus, should pay enough attention to the removal of bad habits, adjust the diet structure, increase the amount of outdoor exercise and strengthen the regular physical examination in order to detect and treat pancreatic cancer as early as possible.