Cancer

In the beginning of a human's life, the cells in the body grow quickly to allow a  person to grow. As a human gets older, the reproduction of cells slows. The cells grow, divide, and then die normally.

Cancer is a group of over 100 diseases that occur when the cells begin to grow rapidly and out of control. The cells will grow and, at times, invade tissue. This is something that normal cells cannot do and is a clear indication that there is cancer in the body. The cancer cells become the way the are because of damage done to the DNA. When cancer cells divide, those cells will have the same damaged DNA. Besides obvious reasons like smoking for lung cancer, doctors struggle to find reasons as to why the DNA might have become damaged. No clear cause is ever found. 

Cancer also spreads, however, the cancer is named after the place where it began. For example, if cancer that began in the breast spreads to the liver and causes serious damage there, it is still considered lung cancer because that is where it began. 

In most cases with cancer, the cells will form a tumor in the tissue. However, in leukemia, a tumor rarely grows. Instead, leukemia involves damage in the blood and blood organs.
There are several different types of cancer, as mentioned previously. However, there are a few common types of cancer im sure that you are aware of. I will go over 4 of the most common forms.
Skin cancer is one the most common types of cancer in the world. This type of cancer affects more than one million people a year. Skin cancer occurs to the cells in the skin, or anywhere on the body. It is mostly caused from deadly rays that come from the sun. There are several different forms of skin cancer. Skin cancer is most commonly found in ederly people or people with compromised immune systems.

SKIN CANCER CELL

                   

Lung cancer strikes the cells inside the lining of the lungs. There are two types of lung cancer: Small cell and non-small cell. Small cell cancer is commonly found in men over women. Small cell cancer is usually due to cigarette smoking and is rare for people who do not smoke. This is the most aggresive form of lung cancer and starts in the breathing tubes or center of the chest. The cells in small cell lung cancer are very small but produce much more rapidly than non-small cell lung cancer. These rapidly growing cells produce very large tumors. These large tumors metastasize to other parts of the body(commonly the brain, liver, and bones). Non-small cell lung cancer grows and spreads much more slowly than small cell lung cancer.

LUNG CANCER CELL

Breast cancer is the most common cancer for a woman to develop. This cancer begins in the tissue of the breast and can spread to other areas of the body. There are two types of breast cancer. The first type is called Ductal Carcinoma breast cancer. This type of breast cancer is the most common type of breast cancer and is the cause for approximately 80% of all breast cancer. Ductal means that the cancer began in the milk ducts. Carcinoma refers to cancer that begins in the tissue. Altogether, it means cancer that has broken through the ducts and has spread to the breast tissue. This type of breast cancer can spread to the lymph nodes and to other parts of the body. The second type of breast cancer is Lobular Carcinoma breast cancer. In this type of cancer, the cancer cells have broken out of the lobule and have began to spread to other areas of the body. This type of cancer makes up a small percentage of breast cancer and usually forms lumps in the tissue of the breast.

BREAST CANCER CELL

Prostate cancer is the most common cancer to affect men, mostly over the age of 50. It is rarely found in ment below the age of 40. The prostate gland is apart of the reproductive system in men and is located at the base of the bladder near the rectum. This cancer develops in the tissue of the prostate gland. African americans, all men older than 50, all men who have a father or brother with prostate cancer, all men who frequently consume alcohol, farmers, men who have a high fat diet, and painters are all at risk for developing prostate cancer. Prostate cancer is not commonly found in people who are vegetarians.

PROSTATE CANCER CELLS

Information sources:

• http://www.cancer.org/Cancer/BreastCancer/OverviewGuide/breast-cancer-overview-what-is-breast-cancer 

• http://www.cancer.gov/cancertopics/cancerlibrary/what-is-cancer

• http://www.cancer.gov/cancertopics/wyntk/prostate/page3