Wu Yu (Chief Physician, Department of Oncology, Xiyuan Hospital, Chinese Academy of Traditional Chinese Medicine) always has some symptoms before the onset of the disease. Knowing the signals from these diseases as soon as possible and mastering the law of disease occurrence can make it possible to find and treat them at an early stage. Although the current medical technology has no early symptoms of cancer confirmed by medical professionals, a large number of data prove that if the body shows the following signals, it needs to go to the hospital for examination. ▎ Unresolved fatigue is the most direct signal from the body, and the first sign of various health problems must be fatigue. Fatigue is the performance of the body after consuming energy. Fatigue caused by energy consumption in work will disappear after rest; Even after working continuously for a long time, taking a rest will obviously relieve fatigue. If you always feel tired after rest, you don't feel relieved, and it lasts for a period of time, you should be alert to whether there is a condition in your body. ▎ Unexplained weight loss is one of the important signs to reflect and measure physical health. If you inexplicably lost 65,438+00% weight in one month without increasing exercise or reducing diet, you should also see a doctor for a general examination. Cancer cells are a kind of cells that reproduce very fast, consume energy quickly and easily cause weight loss. Constant pain is a warning that the body is hurt. If your body keeps hurting for no reason, you should be alert. If the pain has lasted for a week, find out the reason as soon as possible. ▎ Skin changes Pay more attention to your skin changes at ordinary times. Observe whether there are sudden lumps and pigmentation on the skin. If yes, observe whether the change is obvious every day. If the change is obvious, it is likely to be a sign of skin cancer. In addition, once the skin suddenly bleeds or falls off abnormally, it should be checked in time. This is not necessarily cancer, but it should be checked in time to determine the cause. Abdominal distension Abdominal distension may be caused by indigestion, which is often ignored by everyone. But once there is persistent abdominal distension, accompanied by satiety, loss of appetite and other symptoms, it is necessary to find out the reason. If you have abdominal distension and feel a little hard in your abdomen, you should see a doctor in time and have a more detailed examination. ▎ Abnormal bleeding is an early warning issued by the body, and sometimes bleeding is even a "cry for help" issued by the body to remind you to pay attention. Special attention should be paid to some hidden bleeding situations. The color of stool is brown or black continuously. Women's non-physiological bleeding should not be careless, because it may be the manifestation of gastrointestinal bleeding or female abdominal bleeding, and it may become cancerous, so it is necessary to seek medical attention in time. Cough is not only a protective reflex action of human body, but also a signal of respiratory diseases. The study found that if the unprovoked cough lasts for more than 3 weeks, you should see a doctor in time for examination and treatment. The symptoms of lung cancer and laryngeal cancer in cancer are persistent cough, so pay attention. If there are white spots in the mouth or oral ulcers exist in the same place for a long time, we should also pay attention. This may be a sign of vitamin deficiency or a signal of cancer. Especially when you are unwell and accompanied by oral leukoplakia or ulcer, you'd better go to the hospital for a detailed examination. Wu Yu (Chief Physician, Department of Oncology, Xiyuan Hospital, Chinese Academy of Traditional Chinese Medicine) always has some symptoms before the onset of the disease. Knowing the signals from these diseases as soon as possible and mastering the law of disease occurrence can make it possible to find and treat them at an early stage. Although the current medical technology has no early symptoms of cancer confirmed by medical professionals, a large number of data prove that if the body shows the following signals, it needs to go to the hospital for examination. ▎ Unresolved fatigue is the most direct signal from the body, and the first sign of various health problems must be fatigue. Fatigue is the performance of the body after consuming energy. Fatigue caused by energy consumption in work will disappear after rest; Even after working continuously for a long time, taking a rest will obviously relieve fatigue. If you always feel tired after rest, you don't feel relieved, and it lasts for a period of time, you should be alert to whether there is a condition in your body. ▎ Unexplained weight loss is one of the important signs to reflect and measure physical health. If you inexplicably lost 65,438+00% weight in one month without increasing exercise or reducing diet, you should also see a doctor for a general examination. Cancer cells are a kind of cells that reproduce very fast, consume energy quickly and easily cause weight loss. Constant pain is a warning that the body is hurt. If your body keeps hurting for no reason, you should be alert. If the pain has lasted for a week, find out the reason as soon as possible. ▎ Skin changes Pay more attention to your skin changes at ordinary times. Observe whether there are sudden lumps and pigmentation on the skin. If yes, observe whether the change is obvious every day. If the change is obvious, it is likely to be a sign of skin cancer. In addition, once the skin suddenly bleeds or falls off abnormally, it should be checked in time. This is not necessarily cancer, but it should be checked in time to determine the cause. Abdominal distension Abdominal distension may be caused by indigestion, which is often ignored by everyone. But once there is persistent abdominal distension, accompanied by satiety, loss of appetite and other symptoms, we must find out the reason. If you have abdominal distension and feel a little hard in your abdomen, you should see a doctor in time and have a more detailed examination. ▎ Abnormal bleeding is an early warning issued by the body, and sometimes bleeding is even a "cry for help" issued by the body to remind you to pay attention. Special attention should be paid to some hidden bleeding situations. The color of stool is brown or black continuously. Women's non-physiological bleeding should not be careless, because it may be the manifestation of gastrointestinal bleeding or female abdominal bleeding, and it may become cancerous, so it is necessary to seek medical attention in time. Cough is not only a protective reflex action of human body, but also a signal of respiratory diseases. The study found that if the unprovoked cough lasts for more than 3 weeks, you should see a doctor in time for examination and treatment. The symptoms of lung cancer and laryngeal cancer in cancer are persistent cough, so pay attention. If there are white spots in the mouth or oral ulcers exist in the same place for a long time, we should also pay attention. This may be a sign of vitamin deficiency or a signal of cancer. Especially when you are unwell and accompanied by oral leukoplakia or ulcer, you'd better go to the hospital for a detailed examination. ▎ Dysphagia If you have long-term retrosternal pain after eating and have foreign body sensation in the esophagus, you should check it in time. Or someone can feel a foreign body in the esophagus when they are not eating. When swallowing, you feel that the food is slow or even stays in the esophagus, so you should check it as soon as possible. ▎ * * * lump * * is one of the few organs that can be self-examined. Self-examination before and after bathing * * *, starting from the armpit and pressing around * * * by hand. If there are lumps, you should pay attention. It may be hyperplasia of mammary glands, so you must go to a doctor for diagnosis, which is of great significance to prevent breast cancer. If there is no * * * lump, but it is found that * * * skin is red, there is a rash or * * * depression, fluid outflow and other abnormal phenomena, it should also be checked as soon as possible. In addition, breast abnormalities are not the patent of women, and men should also prevent them. The above physical manifestations are not the characteristics of cancer. According to the current understanding of cancer, there is no exact early diagnosis standard that can be called a sign of cancer. Therefore, people with high incidence of cancer should be more cautious and don't ignore the small signal of physical discomfort. The sooner you pay attention to these small signs of discomfort, the more likely you are to find cancer as soon as possible, and the higher the probability of cure. Common symptoms of cancer-chest tightness in lung cancer, feeling breathless, persistent cough, blood in sputum, and occasional chest pain. -Liver cancer often has dull pain and tenderness under the right rib, accompanied by abdominal distension, fatigue, emaciation, loss of appetite and other symptoms. Touching the liver area under the right rib may have a hard feeling. -Cervical cancer has irregular bleeding, especially contact bleeding, which will discharge liquid as thin as water or rice, or have a bad smell. -Breast cancer has a lump around the breast and feels irregular, painful or painless. There are many reasons why * * * secretes serous fluid and has peculiar smell during non-pregnancy, but attention should be paid to the lump accompanying * *. -epigastric discomfort, fullness after eating, loss of appetite, fatigue, persistent indigestion, accompanied by epigastric pain or heartburn. At this time, if there is weight loss, it means that it is gradually developing to a bad situation. -Esophageal cancer feels uncomfortable when swallowing food, and the speed of food passing through the esophagus is very slow. I often feel that food stays in my throat, accompanied by pain behind my sternum, burning, stabbing or pulling. -Abdominal discomfort caused by rectal cancer, accompanied by dull pain, abdominal distension, changes in stool habits, bloody stool, anemia and fatigue, and a lump can be felt in the abdomen when lying down. -Bladder cancer has hematuria over 40 years old, and sometimes hematuria only occurs 1 time, which should also be paid attention to. Prostate cancer is often asymptomatic in the early stage, but with the development of the disease, dysuria will occur. At this time, timely medical treatment can greatly improve the cure rate of prostate cancer. -Thyroid cancer is not easy to find in the early stage, and timely thyroid examination is of great significance for early detection of thyroid cancer. -Nasopharyngeal cancer has a feeling of obstruction, nosebleed congestion or blood in the "sputum" after nasal aspiration; Touching the neck with lymphadenopathy, accompanied by unexplained headache. Refractory abdominal pain occurs in the upper abdomen of pancreatic cancer, and the pain can radiate to the lower back, which is often obvious at night and aggravated when lying on your back. Curling or leaning forward can relieve pain, accompanied by indigestion symptoms such as fullness and discomfort, jaundice, rapid weight loss and fatigue. Some people will have symptoms of diabetes in the early stage, which is easy to be ignored. Lymphoma lymph nodes are distributed in all parts of the body, especially in the neck, armpit and groin. If anemia is accompanied by swollen lymph nodes and symptoms such as fever, itching, night sweats and inexplicable weight loss appear all over the body, it is even more important to pay attention. According to the different carcinogenicity of common factors in life, the International Center for Research on Cancer divides carcinogenic factors into five categories and four grades, namely carcinogens, possible carcinogens, unknown and possibly non-carcinogenic. Carcinogens are 1 1 1. There are enough medical evidence and animal experiment results to prove that these factors are carcinogenic, such as radioactive substances, asbestos, benzene, aflatoxin and other possible carcinogens, 65 kinds of IIA；; There is sufficient animal experimental evidence, but there are less than 274 kinds of IIB evidence for humans; It means that there is insufficient evidence of carcinogenicity to humans and animals, such as exhaust gas after diesel combustion, safrole, antithyroid drug propylthiouracil, dry cleaning solution, etc. It means that it is uncertain whether it is carcinogenic to humans, and more research is needed. For example, caffeine may not cause cancer, and 1 species may not cause cancer to humans. For example, caprolactam is extracted from Complete Handbook of Cancer Prevention and Treatment/Wu Yu (Chief Physician, Department of Oncology, Xiyuan Hospital, Chinese Academy of Traditional Chinese Medicine)/Wan Li Institution.