Cancer is a disease in which cells grow out of control and invade, erode, and destroy normal tissue. Damaged genes cause this development of cancer. These damaged genes are often a factor caused by such things such as the environment, and can be influenced by inherited factors. As the very early damaged cells divide they can evolve into a malignant cell population, and lose the control mechanism that govern normal cell division. These malignant cells can then go on to form solid tumours that start to destroy normal tissue. These can then spread to other parts of the body by releasing these tumour cells.

Tobacco smoke contains at least twenty carcinogens, which are known to cause lung cancer. Age can be a factor when asked what causes cancer. This is because cancer becomes more common as we get older. 85% of cancers are diagnosed in patients over fifty-five. This is because as we get older we become more susceptible to some types of carcinogens.
Age is also a cause as it takes a long time for a cell to become cancerous, as there has to be a number of changes to the genes within a cell before it turns into a cancerous cell. Therefore the longer we live; the more time there is for us to become susceptible to these mistakes in our genes. Our genetics are also another cause of cancer. If we are born with one of these genetic mutations, which can cause cancer, we are said to be genetically predispositioned.

Women Mainly have breast cancer but men can get it also. Some people doesn’t realize that men have breast tissues and that can develop breast cancer. Studies show men are diagnosed with breast cancer contrary to the perception that this disease is solely diagnosed in women. What is breast cancer in men? Breast cancer is a malignant tumor that starts from cells of the breast.
After puberty men and boys normally have low level than females hormones and of getting breast cancer in all cells of the body. A man breast duct cells can undergo cancerous changes. Breast cancer is less common in men because their breast cells are less developed than women breast cells.

There has been a large amount of researches dedicated to the treatment and cure of cancer. Several types of treatments have been developed. The following are just some of the major examples of cancer therapy: surgery, chemotherapy, radiation therapy, biologic therapy, biorhythms, unconventional treatments, and hyperthermia.
A second mechanism is the suppression of cancer cells for variable periods of time without cell death. Unfortunately, the cancer can return at any time, and it is sometimes stronger.
Radiation therapy is the ionization of atoms in tissues. ionizing radiations are used to eradicate tumors and at the same time preserve structure and function of normal tissue.