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Everybody have millions of cells in their bodies, each of which has a specific function. Normal cells have a process: growing, dividing and dying in a certain pattern. The rate of cell division varies in different organs and tissues.
Cell structure changes under the influence of various factors the environment, the background radiation, stress, bad habits, heredity; all these factors affect each person differently. The cells begin to divide uncontrollably and lose the ability to recognize their own cells and become cancer cells.
Cancer cells differ from normal cells; they continue to grow and divide to form new pathologies instead of death. Tumor cells typically produce toxic substances which lead to a weakness and weight loss.
Simple tumor called benign, it just grows from outside the organ and can grow to large sizes and press on it. Such tumors can be cut out and forget about it.
A completely different situation arises in the case where in addition to the ability to over-proliferate mutated cells have another harmful ability to penetrate through the layers of other cells. This tumor is not just grows in size but also grows through other organs and tissues.
Growing through the tissues tumor reaches the blood vessels. And degenerate cells fall off from the main tumor and enter the bloodstream and are carried by the blood throughout the body. In those places where the cells are retained they give rise to new tumors metastasized. This usually occurs in the lymph nodes. Immunity fights against cancer cells but often plays a harmful role. Killing degenerate cells he select the most imperceptible to him. As a result generations of cells are less and less fixed by immunity.
Cancer is a long multi-step process. It is known that a tumor reaches the lung, stomach or breast in 5-10 years. Thus, the majority of tumors begin in 25-40 years. It is difficult to predict the intensity of tumor growth; this process depends on many factors: the organism, tissue resistance and other. There are factors that accelerate it: excessive sun exposure, trauma, physiotherapy (quartz, UHF, etc.), depressed condition of the patient, fear. At the first stage you can achieve a complete curable but the fourth stage is not.
Breast cancer in case of timely diagnosis and adequate treatment can have a favorable prognosis and extend the women’s life. However, the problem of malignant tumors not only breast but also any other location is that it is difficult to notice it at zero and first stages of the disease when the treatment is very effective because it doesn’t have symptoms at the early stages. If a woman begins to feel pain, sees consolidation in the chest and have painful lymph nodes then this often indicates a late stage oncology. Signs of breast cancer:
- The presence of thickening;
- Swelling in the breast or nipples;
- The deformation of breasts, changing of the shape or structure of breast;
- The presence of yellow or bloody discharge from the nipple;
- Pain and discomfort in one breast;
- Increased axillary lymph nodes;
- Swollen shoulder.
If you notice something unusual do not panic because over 50% of women have various changes and not the fact that it is 100% cancer process.
Leukemia is a disease that affects red blood cells. It develops in the bone marrow because of mutation of one of them and is formed cancer cells instead of healthy one. There are known factors which impact increase the risk of leukemia:
- Prolonged exposure to radiation;
- Contact with chemicals such as benzene;
- Chemotherapy, patients treated from another cancer;
- Down syndrome and some other genetic disorders;
Prostate cancer take a 2nd place in mortality rate. Around 80% of it is found in men older than 65 years and rarely in men who are 40 years and most men older than 80 years have any form of prostate cancer. The risk to have it is greater if the relative had it at a young age before 60 years or if there is more than one close relative with the disease. To detect the disease at early stage you need to do a blood test for PSA and rectal examination.
The most complete portrait of a person with lung cancer: a 60 years old man who smokes. Yes, smoking is the first cause of the disease because cigarette smoke contains a huge amount of carcinogens and other harmful substances. It leads to dysfunction of function and structure of bronchial epithelial. In 90% of cases it occurs because of smoking.
The term "lymphoma" in medicine is the whole group of cancer that affects the cells of the lymphatic system. There are tumor formations of lymphocytes. They go through several stages of maturation and cancer can develop in any of them. The disease often occurs in lymph nodes or other organs of the immune system for example in the spleen or bone marrow. As the lymphoid tissue is found in most organs, malignant tumors can arise in almost any organ. Abnormal cells travel through the body via the blood so they can quickly reach all parts of the body.
Another form of malignant tumors is a cancer of the skin. Most often it localized on the forehead, nose, ears, and in the temporal areas around the eyes. There are several main causes:
- Tanning in the sun or in a tanning bed; 90% of cancers are localized on constantly exposed skin;
- People with white skin; especially redheads and natural blondes;
- People with bad heredity;
- The elderly because their skin is especially vulnerable.