Monday, June 22, 2020

Cancer Overview

Cancer is a new organism in the human body (that is, something that should not be under normal circumstances). This new organism consists of a group of cancer cells that do not develop freely with physiological needs. Cancer cells do not function as normal cells. Because of its rapid and irregular growth, it not only consumes a lot of nutrients, but also destroys the tissue structure and function of normal organs. Cancer cells spread to the surrounding erosion in an invasive growth mode. It can also spread into other organs and tissues by other means, so that these tissues and organs have the same tumor. This situation is called "transfer". There are three ways of cancer metastasis.

1. Lymphatic metastasis:

Cancer cells pass through the lymphatic vessels. It is carried to the lymph nodes by the lymph fluid. Continue to grow and reproduce in the lymph nodes. Formation of "metastatic tumor". This scale of metastases has further spread to other lymph nodes. This is the case if breast cancer metastasizes to the axillary lymph nodes.

2. Blood tract metastasis:

In most cancers, the cancer cells invade the blood vessels in the later stages and spread through the blood circulation. In addition, lymphatic metastasis can also develop into hematological metastasis, because there is a pathway between the lymphatic vessels and the choroid.

3. Planting transfer:

Cancers of internal organs, when invading the outermost layer, cancer cells can fall off to the surface layer of adjacent or distant organs to grow and reproduce. continue to develop. For example, after the gastric cancer cells are shed, "planted" in the bladder and rectum fossa (women's uterus and rectum fossa). The formation of "plant nodules" is an example.

Cancer is a common disease, it can occur in various organs of the human body. Middle age is the peak period of cancer. According to the relevant spots, only 1/10 of the elderly people who died died of cancer; cancer accounted for 1/5 of the causes of death among middle-aged people. At the same time, it is pointed out that the average age of patients dying of cancer is 55-59 years, which is 12-18 years less than normal. The impression of cancer is "incurable disease", so it makes people "light cancer", and it is daunting. Neither doctors nor patients have enough confidence to cure cancer. However, with the advancement and development of medicine, diagnostic methods continue to advance. Computerized X-ray tomography (CT) examination, gray-scale ultrasound examination, and endoscopy. The comprehensive use of various examination methods such as radionuclide examination can make about 80-90% of cancers diagnosed, and enable one-third of cancer patients to be discovered at an early stage. Of these early cancers, 90% can be cured. Through the practice of clinical treatment of patients, doctors have found that comprehensive treatment is an effective means to overcome cancer and cure it. Existing methods for treating cancer include: external surgery and radiation therapy. Comprehensive treatments such as anti-cancer chemical drug treatment, immunotherapy, traditional Chinese medicine treatment, etc. These methods have significantly improved the cure rate of cancer, and more than half of patients can obtain a long-term survival chance. Therefore, many experts believe that cancer is no longer an "incurable disease".

Among various diseases, cancer can be described as the "number one killer". No wonder many people have a "fear of cancer" mentality. However, it is not good to increase the mental burden too much. In fact, cancer can be completely controlled and even cured. The key lies in "three early", that is, early detection. Early diagnosis and early treatment. However, some people are too confident in their bodies. I thought that I had always been healthy and had "immunity" against cancer, and ignored all kinds of abnormal manifestations on the body. This is also wrong, but I don't know that once the symptoms occur, the treatment is quite tricky. It is better to persuade the guard to be vigilant!

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