The news that a drop of blood can detect lung cancer has attracted the attention of the public. on November 18, the reporter learned from the island hospital that there are more and more cancer patients, and the incidence is getting younger and younger, in fact, many tumors can be seen in the early stage through blood testing tumor markers. Doctors said that 80 to 90 percent of cancers can be cured in the early stage, so people must seek timely medical consultation when they are unwell, and high-risk groups should have regular medical checkups. One drop of blood to detect lung cancer attracts the public’s attention “One drop of blood can detect lung cancer, it is really more and more advanced, is it going to be applied soon?” Ms. Wang, a citizen, said after seeing this news that this is really a gospel for lung cancer patients. It is understood that lung cancer is the malignant tumor with the highest incidence and also the highest mortality rate among Qingdao residents. According to the introduction, in 2012, there were 14,257 new confirmed cases of malignant tumors and 14,983 deaths in the city, and the deaths caused by malignant tumors accounted for 27.44% of all causes of death. According to the introduction, there are more and more new malignant tumor patients on the island, and the patients are getting younger and younger. 2008 to 2012, the change of malignant tumor death data, lung cancer, liver cancer, stomach cancer, esophageal cancer, colorectal cancer has been in the top five, from 2010, pancreatic cancer ranking from the seventh to the sixth, breast cancer from the sixth to the seventh. Lung cancer, liver cancer, and stomach cancer deaths steadily ranked in the top three times. Most tumors can be detected by blood So except for lung cancer which can be detected by a drop of blood, are other cancers currently available for early detection? By what means can they be detected? “Many tumors can be screened by markers.” Ma Xuezhen, executive director of Qingdao Anti-Cancer Association and professor of Qingdao Central Medical Group, said that tumor markers are chemical substances produced by tumor tissues that reflect the presence of tumor itself, and the presence or quantitative change of these substances can suggest the nature of tumor. Like ovarian cancer, prostate cancer, breast cancer, stomach cancer, intestinal cancer, lung cancer, etc. all have corresponding markers , currently there are no markers for bladder cancer, cancer of kidney and cancer of muscle fat. ”These tumor markers are detected through blood.” Ma Xuezhen said that during the test, one to two milliliters of the patient’s venous blood needs to be drawn, and then the test is performed through a reagent test kit. In general, the test results will be available on the same day. The cost of the test is about one hundred yuan. After the blood test, there is a need to follow up. “It does not mean that there is a tumor after the detection of tumor markers.” Ma Xuezhen said, there is a range of tumor markers, if it is not much beyond the index, there is no problem, if it is several times beyond the index, there is a possibility of cancer. “The markers for different tumor tests are different and the accuracy rate is also different.” Ma Xuezhen said, at present, the detection of prostate cancer is more accurate, the accuracy rate can reach 80 to 90 percent. It is also clear that the diagnosis of liver cancer can be tested for fetoprotein, and the correlation between this and liver cancer can reach 70 to 80 percent. In addition, screening for tumors can also detect carcinoembryonic antigen, which is correlated with all tumors, “but the index is several times higher to be meaningful.” ”Tumor markers are used to screen high-risk people, and if the test results are several times beyond the normal range, further follow-up examinations should be done.” Ma Xuezhen said, if the lung tumor marker is too high, you can further check whether there is a mass by doing chest CT, liver cancer can be detected by CT, MRI or B ultrasound, and stomach cancer can be further checked by gastroscopy. Most patients can be cured by early detection It is understood that the cure rate of cancer in the United States is 68% in 2012, and the cure rate of cancer in China is about 10%-30%. The reporter learned from the hospital that many patients were already in the middle and late stage when they were diagnosed, and the best time for treatment was missed. “In the past few years, with the improvement of public health awareness, there are more tumor patients with early detection, and 30-40% of the patients in the outpatient clinic are detected at an early stage.” Ma Xuezhen said, they have seen a patient in her 70s, this patient has a strong health awareness, did the tumor marker test during the checkup, the checkup found that it was a high tumor marker, and then did further checkups and found that she had a tumor in her lung, finally the doctor gave her a resection surgery, “now this patient has lived for six years after the surgery, generally Lung cancer patients living more than five years after surgery means they are cured.” According to Ma Xuezhen, 80 to 90 percent of all cancers can be cured after early detection. “High-risk people must have regular checkups in general.” Ma Xuezhen said that citizens over 40 years old should be tested regularly for tumor markers . Those who smoke for a long time or often cook at home should focus on checking the lungs; those who eat rough, like to eat hot, often eat salty food and those who have gastritis or gastric ulcer should focus on checking the esophagus and stomach; women who have early menstruation, can feel lumps in the breast and use more cosmetics should focus on checking the breast.