What is Cancer?
Cancer is the growth and division of abnormal cells. In cancer, cells divide and grow uncontrollably, forming malignant /məˈlignənt/ (tending to invade normal tissue or to reoccur after removal) tumors, which may invade other parts of the body though the lymphatic systems or bloodstream. The origins of the word Cancer come from English, Greek, and Latin. Not all tumors are cancerous, Benign tumors do not invade other tissues and do not spread throughout the body.
- Cancer is when abnormal cells divide without control and invade other tissues of the body.
- Cancer spreads through blood and lymph systems in the body.
- There are over 200 types of Cancer.
- Most types of Cancer are named after the organ or cell where the disease is started.
- In 2013, there was 1,660,290 new cases of Cancer and 580,350 deaths from Cancer.
- The causes of cancer are various, difficult, and only somewhat understood.
- Many things that are known to increase cancer risks, including the use of tobacco, nutritional factors , certain infections, being exposed to radiation, very little physical activity, being overweight, and environmental pollutants.
- Some types of cancer run in certain families, but most cancers are not clearly linked to the genes we inherit from our parents.
Types of Cancer
The 5 most common types of cancer are as shown:
1. Skin cancer
Skin cancer is named after the type of skin cell from which they arises. There are two types of skin cancer non-melanoma
and melanoma categories.
2. Lung cancer
Lung Cancer is a disease characterized by uncontrolled cell growth in tissues of the lung.
Cigarette smoking is the most important risk factor for lung cancer.
3. Prostate cancer
It's estimated that 1 in 6 men in the U.S. will be diagnosed with prostate
cancer in their lifetime. It's the most commonly diagnosed cancer among men
(excluding skin cancer) and the second most common cause of death.
4. Breast cancer
Breast cancer is a type of cancer originating from breast tissue. Breast cancer ranks second as a cause of cancer death in women (after lung
cancer).
5. Colorectal Cancer
Colorectal cancer means that cells that aren't normal are growing in your
colon or rectum . These cells grow together and form polyps. Over time, some
polyps can turn into cancer. Colorectal cancer doesn't discriminate --
it's the third most common cancer in both men and women. Colorectal cancer was
expected to account for nine percent of all cancer deaths in 2012.
1. Skin cancer
Skin cancer is named after the type of skin cell from which they arises. There are two types of skin cancer non-melanoma
and melanoma categories.
- Non-melanoma (basal cell and squamous cell skin cancer) is the more common form. Most of these forms
of cancer are curable. - Melanoma, on the other hand, is the more serious type of skin cancer.
2. Lung cancer
Lung Cancer is a disease characterized by uncontrolled cell growth in tissues of the lung.
Cigarette smoking is the most important risk factor for lung cancer.
3. Prostate cancer
It's estimated that 1 in 6 men in the U.S. will be diagnosed with prostate
cancer in their lifetime. It's the most commonly diagnosed cancer among men
(excluding skin cancer) and the second most common cause of death.
4. Breast cancer
Breast cancer is a type of cancer originating from breast tissue. Breast cancer ranks second as a cause of cancer death in women (after lung
cancer).
5. Colorectal Cancer
Colorectal cancer means that cells that aren't normal are growing in your
colon or rectum . These cells grow together and form polyps. Over time, some
polyps can turn into cancer. Colorectal cancer doesn't discriminate --
it's the third most common cancer in both men and women. Colorectal cancer was
expected to account for nine percent of all cancer deaths in 2012.
Fast Facts
1. About 12.7 million are affected by cancer a year.
2. African American women are most likely to develop breast cancer.
3. By the process of human cloning, people with cancer could live longer.
2. African American women are most likely to develop breast cancer.
3. By the process of human cloning, people with cancer could live longer.
Source(s):
http://en.wikipedia.org/wiki/Cancer
http://www.cancer.gov/cancertopics/cancerlibrary/what-is-cancer
http://www.cancerresearchuk.org/cancer-help/about-cancer/what-is-cancer/grow/how-a-cancer-spreads
http://seer.cancer.gov/statfacts/html/all.html
http://www.cancer.org/cancer/cancercauses/geneticsandcancer/index
www.webmd.com
http://en.wikipedia.org/wiki/Cancer
http://www.cancer.gov/cancertopics/cancerlibrary/what-is-cancer
http://www.cancerresearchuk.org/cancer-help/about-cancer/what-is-cancer/grow/how-a-cancer-spreads
http://seer.cancer.gov/statfacts/html/all.html
http://www.cancer.org/cancer/cancercauses/geneticsandcancer/index
www.webmd.com