We know cancer take place all over the word, while due to different conditions, different ways of life and different cultures in discrete countries, cancers' incidence morbidity and recognizable cancers kinds are unlike.
Cancer is a worldwide disease,
but in different countries, because of different environments, different ways of life and different cultures, cancers' incidence and common cancer types are different. Take China for example, the major cancers are carcinoma of esophagus, carcinoma of stomach, colorectal cancer, hematoma, nasopharyngeal carcinoma, CLC, breast carcinoma, cervical carcinoma and APL.
Esophageal cancer: our country is high-incidence esophageal cancer country, and also is the highest esophageal cancer mortality country in the world. In 1970s, a survey showed that carcinoma of esophagus mortality is stay the second position, only after the gastric cancer. From the 1980s, carcinoma of esophagus was the second killer in male and the third in female. According to the 1990s survey, though the esophagus mortality decreased, it still on the top 4. In our country; esophageal cancer has a certain distribution. Generally speaking, the incidence of farmer is higher than city.
Stomach cancer: In the past, the stomach deaths stay the top one. In 1990s, stomach cancer ranked the second in town but the first in the country. The incidence of a disease rise with the age, and did not change a lot.
Colorectal cancer incidence and mortality in China turns more and more. All over the world, colorectal cancer can be the top four to six. It is concerned with surroundings and living habit.
Liver cancer happens in our country and the frequency is very high. All over the worldwide, liver cancer stayed the top three, died 11 million every year.
Nasopharyngeal carcinoma: The south area is the high infection region, for example, Guangdong, Guangxi, Hunan and so on. Morbidity decreased along the south to north. Generally speaking, male is easier than female.
Lung cancer: lung cancer is one of the most common cancers. The death rate is becoming bigger and bigger. According to the survey, bad living habit will result the lung cancer. What's more; lung cancer can be resulted in the smoking. You smoke how much or how long, you will get how many dangers.
Breast cancer: It happen fewer in our country, but in recent years, it happens frequently. The morbidity of women is nine times more than men. Beijing, Tianjin, Shanghai and the coastal areas in China, is the area of breast cancer incidence. Mortality rate increased with age.
In Gynecologic Cancers, cervical cancer can be say the first cancer and the mortality is very high. In our country, the age at onset is usually late, average 65 years old. The mortality is on the top 4.
Leukemia is one of the most common cancers in hemopoietic system. The morbidity is 5 percent in all the death in all the cancers.
