WHAT IS CANCER

The human body consists of cells of different forms and functions. Pretty simple, every cell contains an outer envelope and the nucleus, and in the nucleus reservation background of the cell. This information in fact be present in the molecule DNA, DNA - deoxyribonucleic acid.Contains DNA from chromosome 26, which itself is composed of millions of genes. These genes are determined by the system and the functioning of the cell.

During some of our body's cells die naturally and the body compensates for that deficiency in cells through division. When the cell division to produce another copy of the DNA and then divided into two cells. This is what happens in the cell is very simple, as the process of division is more complicated than that. Cell division usually occurs on a regular basis so that our bodies growth or to replace or repair damaged tissue. When you are working cells as planned, we enjoy good health, but when the system breaks down, we get sick. In the case of cancer cells grow abnormally, and instead of compensating the damaged cells only, these cells proliferate dramatically outweighed by non-stop on a patient and the problem of so-called tumor.

Tumors that result from the imbalance of two types, namely:

Benign (not cancerous Benign): It is usually packed membrane and non-dispersible, but some may cause problems for a member of the injured, especially if the large size and the impact would be infected by clicking on the member or members close to them, preventing them from working normally. These tumors can be removed surgically or treated with drugs or radiation to reduce the size and it will be enough to heal them and often do not go back again.

Malignant neoplasms (cancer Malignant): a theme of the site. Tumors attack and destroy cancerous cells and surrounding tissue and have a high potential for spread. They spread three ways

Spread directly to the tissues and organs surrounding organ injured

Through the lymphatic system.

Through the bloodstream, where it separated from a cell (or cells) of the initial tumor Primary and transmitted through the device Allmphoui or blood to other organs far enough to settle in somewhere - often members of the rich blood, such as lung, liver or lymph nodes - causing the growth of cancerous tumors other secondary tumors are called Secondary.

Cancer is a group of diseases (more than 100 disease) are similar in some characteristics with each other, because the cancer has been designated as swollen blood vessels around the tumor-like parties lobster. This disease or these diseases result from the cell out of control. No change in the cell, making it out of the control system that controls the cell as in healthy cells.There are more than the theory attributed to the cause of the beginning of cancer in the body.The first says that error occurred in the DNA at the division which is called the situation "change" or mutation. The incidence of error in the DNA at the division over the increasing exposure to carcinogens such as tar in cigarette smoke. Many of these causes for different types of errors occur in the human body but the body's immune system recognize them because they differ from the rest of the cells and destroy them. Sometimes the immune system fails to identify those cells to its similarity with the rest of cell division and cause whereupon the presence of cancer.

A modern theories say that the reason is the existence of a simple genetic defect can not be seen from the immune system and the imbalance with time cause the exit of the cell of control and then the emergence of cancer. This theory explains the appearance of some types of tumors in more than one individual from the same family.