Cancer is one of the most deadly diseases of this time. It has a global reputation for incessant deaths, affecting both children and adults of all gender, race, location and belief. It comes in different forms and symptoms; this is to say that biểu hiện ung thư vòm họng may differ from signs of breast cancer.
Cancer is simply the genetic mutation of cells caused by toxic substances; the effect is an uncontrolled duplication of mutated cells leading to solid tumors and a great decline in the immune system, inhibiting activities and production of certain bodily enzymes needed for regular functions. All forms of cancer are deadly, some more deadly than the rest due to the sensitivity of its location in the body or internal system.
There are over 100 kinds of cancer in existence and the causes may be due to radiation or exposure to chemical substances. A few of the deadliest forms of cancer are liver cancer, lung cancer and bronchial cancer, pancreatic cancer, prostate cancer, breast cancer and non-Hodgkin lymphoma.
While all cancers are deadly, there are some types that are easily curable. Some of them are; melanoma cancer, testicular cancer, early stages of breast cancer, cervical cancer, prostate cancer, Hodgkin lymphoma.
Some cells and tissues in the body differ in composition from the rest and this sometimes makes the spreading of cancerous cells even faster in those tissues. Areas in the body that have the fastest growing cancer cells are; the brain, liver, skin, and the pancreas
Cancer is said to have attained metastasis when it becomes widely spread in all other parts of the body. How does this happen? When cancer cells form in a specific tissue, some cancerous cells break away from the original location and is transported to other locations through the blood where it then begins its process again and spreads. This is why chemotherapy is imperative as it attacks cancerous cells in the blood as well.