How is cancer considered many diseases?

How is cancer considered many diseases?

The term cancer encompasses more than 200 diseases all characterized by the uncontrolled proliferation of cells. Ignoring the body’s signal to stop, malignant cells multiply to form tumors in organs and tissues or, in the case of blood cancers, crowd out normal cells in the blood stream and bone marrow.

Is cancer defined as a disease?

A term for diseases in which abnormal cells divide without control and can invade nearby tissues. Cancer cells can also spread to other parts of the body through the blood and lymph systems.

Is cancer a disease or a disorder?

Cancer is not a single disease. It’s a group of diseases characterized by their ability to cause cells to change abnormally and grow out of control. Most types of cancer form a tumor, a lump or mass of cancerous cells.

Is cancer a serious disease?

However, all cancers are to be taken seriously and, if allowed to progress to advanced stages, can be deadly. After skin cancer, cancer of the prostate is the most common cancer in American men. This disease is extremely common and often produces no symptoms, because it usually (but not always) spreads quite slowly.

Should cancer be consideredd and infectious disease?

Cancer is not normally considered an infectious disease. Yet there is an important link between some infectious agents and certain cancers. Research has shown that chronic infection with certain viruses, and at least one bacterium, can increase the risk of these cancers.

What is cancer and what is cancer caused by?

Cancer is caused by changes (mutations) to the DNA within cells . The DNA inside a cell is packaged into a large number of individual genes, each of which contains a set of instructions telling the cell what functions to perform, as well as how to grow and divide.

Cancer is not a single disease. It’s a group of diseases characterized by their ability to cause cells to change abnormally and grow out of control. Most types of cancer form a tumor, a lump or mass of cancerous cells.

However, all cancers are to be taken seriously and, if allowed to progress to advanced stages, can be deadly. After skin cancer, cancer of the prostate is the most common cancer in American men. This disease is extremely common and often produces no symptoms, because it usually (but not always) spreads quite slowly.

Cancer is not normally considered an infectious disease. Yet there is an important link between some infectious agents and certain cancers. Research has shown that chronic infection with certain viruses, and at least one bacterium, can increase the risk of these cancers.

Cancer is caused by changes (mutations) to the DNA within cells . The DNA inside a cell is packaged into a large number of individual genes, each of which contains a set of instructions telling the cell what functions to perform, as well as how to grow and divide.