Why is cancer detected in the middle and advanced stages?

There are two main reasons for this: A routine check-up does not include a specific test for cancer, but only checks your physical condition and the function of your vital organs. The cancer evolves from a normal tissue cell to a detectable tumor, with an incubation period of about 8-10 years, which is difficult to detect, and targeted cancer screening is required.

Taking lung cancer as an example, X-rays are still used to check for lung cancer in many areas, but the probability of X-ray detection of early-stage lung cancer is less than 15%, and when it can be detected, it is basically in the middle and advanced stages. So how do you get it right? For lung cancer screening, CT must be used; For breast cancer screening, it is important to use a mammography.

The reason why cancer is at an advanced stage as soon as it is found is because the way of annual physical examination is not right.

Why is cancer at an advanced stage when it is detected? What do we need to do to prevent it?

Because ordinary physical examination is useless for cancer screening, it takes about 8-10 years for a human tumor to evolve from a normal tissue cell to a solid tumor with a diameter, and this process is difficult to be seen by B-ultrasound and X-ray, and what you need is a specific cancer examination item.

Why is cancer at an advanced stage when it is detected? Is cancer at an advanced stage when it is detected? I am an insurance broker who specializes in insurance services! Help you shop around and buy the right insurance

Why is it that all cancers are found to be in the middle and advanced stages?

Why is cancer at an advanced stage when it is detected? Is cancer at an advanced stage when it is detected? I am an insurance broker who specializes in insurance services! Help you shop around and buy the right insurance

Why is it that all cancers are found to be in the middle and advanced stages?

Cancer is at an advanced stage as soon as it is detected for two reasons.

One is determined by the characteristics of cancer. From cell mutation to the formation of cancer cells, to the proliferation and accumulation of cancer cells to form tumors, it is a long process of several years or more than ten years, during which the human body will not feel too obviously, that is, it is often said that there is a lack of specific symptoms in the early stage of cancer. Once a tumor is formed, its proliferation rate will accelerate geometrically, and it will progress very much in as little as a month or two, so it is already at an advanced stage when it is discovered.

The second is the difference in perception similar to survivor bias. If a person is diagnosed with cancer at an early stage, in time, and cured, people may not pay much attention. However, when a person is diagnosed with terminal cancer, dies not long after, or is miraculously cured, people will have a particularly strong impression.

Over time, what people retain in their memories is basically the concept that cancer is advanced as soon as it is discovered.

In China, lung cancer, gastric cancer, esophageal cancer, colorectal cancer and female breast cancer are in stage III and stage IV when they are diagnosed, that is, more than half of the patients are already in the advanced stage when they are diagnosed.

"When the cancer was discovered, it was already at an advanced stage, and there was not much time left. "Many cancer patients face this outcome when they are diagnosed. But in fact, the occurrence of cancer is never achieved overnight, but occurs imperceptibly in various carcinogenic factors.

Objectively speaking, cancer cells are also members of the cell and are harmless in themselves. When cancer cells first appear, the body doesn't react much. However, as the number of cancer cells increases, the body's nutrients begin to be over-consumed, normal tissues and structures are destroyed, and eventually cancer cells invade organs throughout the body and promote death.

So, that's why some cancer patients are diagnosed at an advanced stage. In fact, in the early stages, cancer can also show a lot of clues. If you can find it in time, you may be able to save the situation.

For example, fever, cough, abdominal pain, blood in the stool, loss of appetite, malaise, difficulty swallowing, unexplained weight loss, etc. Therefore, if there is an abnormality in the body, you must be vigilant and seek medical attention in time. Cancer cells are not stationary, and cancer patients will metastasize and spread when they reach an advanced stage.

Metastasis of cancer cells is the essential difference between early and advanced cancer, and it is also the cause of death in 90% of cancer patients. Cancer cell metastasis refers to the spread of cancer cells to other organs and tissues of the body through blood metastasis, lymphatic metastasis, micrometastasis and other pathways. After taking root, the cancer cells will continue to wreak havoc and develop into tumors.

What gives cancer cells the ability to metastasize is the weakening adhesion of cancer cells. Normal cells have a certain amount of adhesion between cells and do not run around. After the cancer cells mutate and lose their adhesion, they are like wild horses that have broken away, constantly dispersing and metastasizing in the body.

In the process of metastasis, although cancer cells will also go through many blockages, but their number is too large, there are always some fish that escape the pursuit of the immune system, and eventually metastasize to other organs and tissues, while constantly creating a suitable environment for their own survival. What's more, cancer cells can appear silently in body fluids or other tissues, and cannot be detected by CT or MRI.

Under the attack of powerful opponents, the normal cells in the body are constantly damaged, and the functions of tissues and organs are constantly destroyed, which not only brings great physical and mental pain to cancer patients, but also deprives patients of hope for survival.

Why is cancer at an advanced stage when it is detected? Is cancer at an advanced stage when it is detected? I am an insurance broker who specializes in insurance services! Help you shop around and buy the right insurance

Not all cancers are detected at an advanced stage, but it is true that some cancers are difficult to detect at an early stage. This is because in the early stages, cancer often has no obvious symptoms and does not cause pain or discomfort. As a result, it is difficult to detect cancer at an early stage, even with a routine physical examination.

In addition, some cancers may have symptoms similar to other diseases and can be easily misdiagnosed or missed. For example, early symptoms of lung cancer may be similar to a cold or bronchitis, and early symptoms of breast cancer may be similar to breast fibromas.

Therefore, for high-risk groups, if there is a family history of friends shirt or other risk factors, it is recommended to undergo regular physical examinations and screenings for early detection and**. For cancers that have already been diagnosed, early detection can improve the rate and survival.

The most effective screening method is: imaging examination + genetic testing Circulating tumor cell detection, which can detect the traces of tumors early.

The reason why cancer is mostly at an advanced stage when it is detected is because most cancers have no symptoms at an early stage. Therefore, if you want to detect early cancer, you need regular medical checkups. For example, long-term smoking has a higher probability of developing lung cancer, so high-resolution chest CT scan should be chosen.

As for other targeted cancer screening items, everyone should also know more.

Many cancers do not respond much in the early stage, and the organs will persist again and again.

Why is lung cancer at an advanced stage when it is discovered?

Why is cancer often at an advanced stage as soon as it is detected?

Many cancers do not respond much in the early stage, and the organs will persist again and again.

Most cancers have no obvious symptoms in the early stage, and some patients will also feel unwell, but in many cases, they are mistreated as ordinary diseases, such as gastric cancer, which is often regarded as a stomach disease in the early stage, such as gastritis. Most patients go to the hospital for examination when the symptoms are obvious, and this is because the disease has often progressed, and the cancer is mostly in the middle or even advanced stage. That's why most cancers are found to be in the middle and advanced stages.

Early detection of cancer in internal organs is difficult, and once symptoms appear, these cancers are often in the middle and advanced stagesRelatively speaking, cancers close to the surface of the body, such as breast cancer, **cancer, etc., because they are easy to find, the effect is better.

In the process of cancer development, cancer cells like to wander around from the "base" (cancer lesions) and cause trouble all over the body, and a small number of energetic cancer cells will take root and sprout away from the "base" with the blood or lymphatic circulation, and gradually develop into new lesions, which is the metastasis of cancer.

Cancer cells are not germs or viruses, but mutations of normal cellsSo, how does it harm the human body? Now it is known that cancer cells are like wild horses in the human body, frantically encroaching on the territory of normal cells, and competing for nutrients with normal cells.

Over time, the normal cells of the human body will be affected, the body will become weaker and weaker, and the growing cancer tissue will continue to increase in size, squeezing the space of normal cells, causing pain and dysfunction, and people with cancer will eventually die due to malnutrition or organ failure.

It is precisely because of the "madness" of cancer cells that the ** of cancer has become difficultUsually, after the cancer is found, the doctor will first choose to remove it surgically, which is the most common method of targeted elimination of cancer.

In cases where luck is good or the cancer cells are not so active, surgery can almost completely remove the cancerous tissue from the body, making the body **.

In addition, radiation to the local lesion area** can also achieve the purpose of killing cancer cells, many superficial tissue cancers or early detection of internal organ cancers can be obtained by these methods**, but when the cancer cells have metastasized, it is difficult to obtain satisfactory results from surgery or radiotherapy.

Because many diseases in the human body (such as tumors, Alzheimer's disease, etc.) often first appear in some tissues and organs pathological metabolic changes that are not easy to detect.

Depending on the degree of cancer infiltration, whether there is distant metastasis, pathological sections, etc., food can be taken through a gastric tube.

1. Because of the special location of the liver, it is located behind the ribs and is protected, so it is generally difficult to touch;

2. The liver is special in that it is the only organ in the human body that does not have pain nerves. That is, no matter how much injury or exertion you receive, there will be no abnormal pain. If it leads to the accumulation of liver disease, it is a condition that is ultimately harmful to health.

It is only after the liver cancer grows relatively large, squeezes the liver capsule, and even involves extrahepatic organs, that there will be slight discomfort, and most of them are mild and atypical symptoms, which are not easy to attract the attention of patients;

Because cancer is not easy to detect, it is just beginning, and some people do not pay special attention. In the end, it will be out of control, and it will become more and more serious, and by this time it will be in the middle and late stages when I go to the hospital.

For high-risk groups over 40 years old, regular physical examinations are very necessary. In fact, physical examination is very important to find the disease, and the people in addition to the physical examination organized by the unit, their own initiative physical examination is very few, can adhere to the long-term physical examination in the population of less than 20%, even the medical staff of the hospital can not adhere to the physical examination for a long time, the main reason is the cost of physical examination, the people do not pay attention to physical examination, and the other reason is related to the characteristics of tumor growth. Tumors are the most important growth and can confuse people's immune mechanisms, so they are often not discovered until the tumor is obviously compressive, and it is often in the middle and advanced stages.