What is cancer in summary?
A cancer is an abnormal growth of cells (usually derived from a single abnormal cell). The cells have lost normal control mechanisms and thus are able to multiply continuously, invade nearby tissues, migrate to distant parts of the body, and promote the growth of new blood vessels from which the cells derive nutrients.
What is cancer exactly?
Cancer refers to any one of a large number of diseases characterized by the development of abnormal cells that divide uncontrollably and have the ability to infiltrate and destroy normal body tissue. Cancer often has the ability to spread throughout your body. Cancer is the second-leading cause of death in the world.
What are the top 10 causes of cancer?
The germline mutations are carried through generations and increase the risk of cancer.
- Cancer syndromes.
- Bacteria and parasites.
What are five causes of cancer?
The most common risk factors for cancer include aging, tobacco, sun exposure, radiation exposure, chemicals, and other substances, some viruses and bacteria, certain hormones, family history of cancer, alcohol, poor diet, lack of physical activity, or being overweight.
What are 7 warning signs of cancer?
Signs of Cancer
- Change in bowel or bladder habits.
- A sore that does not heal.
- Unusual bleeding or discharge.
- Thickening or lump in the breast or elsewhere.
- Indigestion or difficulty in swallowing.
- Obvious change in a wart or mole.
- Nagging cough or hoarseness.
Which cancer kills most?
Which Cancers Are Most Deadly?
- Lung cancer: 1.76 million deaths.
- Colorectal cancer: 862,000 deaths.
- Stomach cancer: 783,000 deaths.
- Liver cancer: 782,000 deaths.
- Breast cancer: 627,000 deaths.
How many type of cancer do we have?
There are more than 100 types of cancer, and some are more common than others, depending on things like your age, gender, and racial or ethnic group.