What Is Cancer and How Can It Be Treated?
- by redsaf
Cancer is a disease characterized by the abnormal growth of cells in the body. The abnormal cells are able to divide indefinitely, even when damaged. They are also able to invade the surrounding tissues and spread to other parts of the body. In addition, cancer cells release cells into the blood, where they can spread and grow. Cancer researchers are now developing cancer therapies to target the abnormal cells and stop them from growing. This disease has many causes, including genetics, lifestyle, and environmental factors.
Most types of cancer are capable of spreading from their original site, so doctors have developed various staging systems that classify cancer by its potential to spread throughout the body. Staging systems are given in Roman numerals and predict the extent to which cancer will spread. Although cancer can grow anywhere in the body, the most likely areas for it to spread are the lungs, lymph nodes, bones, and brain. If the cancer cells are found in these areas, treatment will be based on the stage of the cancer and the location of its spread.
Screening tests and signs can help doctors recognize a cancer. However, they are not conclusive. A pathologist must examine a tissue sample to determine if the cancer is present. Screening tests and medical examinations can detect cancer early, but many cases have no symptoms. Cancer screenings can detect cancer in otherwise healthy people. These tests include Pap tests, colonoscopy, and mammography. Cancer screenings are recommended for individuals based on age, gender, and other risk factors.
Cancer is an enormous group of diseases characterized by uncontrolled cell growth. Most of the cases are in adults, and not children. However, there are some types of cancer that do not cause tumors. These diseases involve abnormal cell growth and can spread to other parts of the body. Cancer is the second leading cause of death globally, accounting for one in every six deaths in 2018.
Metastasis is a process in which cancer cells spread to distant parts of the body. Cancer cells travel through the blood stream to distant parts, including the lungs and bones. Once they reach another part of the body, the cancer cells can grow and form another tumour. This is called metastasis. While most types of cancer begin in a tumor in a particular organ, others develop from blood cells. These cancers originate in the bone marrow or blood, and are commonly known as blood cancers.
Infections are another cause of cancer. Infections are responsible for up to 18% of all cancer deaths worldwide, varying from 25 percent in Africa to 10 percent in the developed world. Infections caused by viruses are the main culprits of cancer, but other factors, including bacteria and parasites, may contribute to the development of cancer. Toxic chemicals and radiation are also known to increase the risk of cancer. However, most people do not have any symptoms of cancer when they are infected with a virus.
Cancer is a disease characterized by the abnormal growth of cells in the body. The abnormal cells are able to divide indefinitely, even when damaged. They are also able to invade the surrounding tissues and spread to other parts of the body. In addition, cancer cells release cells into the blood, where they can spread and grow. Cancer researchers are now developing cancer therapies to target the abnormal cells and stop them from growing. This disease has many causes, including genetics, lifestyle, and environmental factors. Most types of cancer are capable of spreading from their original site, so doctors have developed various staging systems that classify cancer by its potential to spread throughout the body. Staging systems are given in Roman numerals and predict the extent to which cancer will spread. Although cancer can grow anywhere in the body, the most likely areas for it to spread are the lungs, lymph nodes, bones, and brain. If the cancer cells are found in these areas, treatment will be based on the stage of the cancer and the location of its spread. Screening tests and signs can help doctors recognize a cancer. However, they are not conclusive. A pathologist must examine a tissue sample to determine if the cancer is present. Screening tests and medical examinations can detect cancer early, but many cases have no symptoms. Cancer screenings can detect cancer in otherwise healthy people. These tests include Pap tests, colonoscopy, and mammography. Cancer screenings are recommended for individuals based on age, gender, and other risk factors. Cancer is an enormous group of diseases characterized by uncontrolled cell growth. Most of the cases are in adults, and not children. However, there are some types of cancer that do not cause tumors. These diseases involve abnormal cell growth and can spread to other parts of the body. Cancer is the second leading cause of death globally, accounting for one in every six deaths in 2018. Metastasis is a process in which cancer cells spread to distant parts of the body. Cancer cells travel through the blood stream to distant parts, including the lungs and bones. Once they reach another part of the body, the cancer cells can grow and form another tumour. This is called metastasis. While most types of cancer begin in a tumor in a particular organ, others develop from blood cells. These cancers originate in the bone marrow or blood, and are commonly known as blood cancers. Infections are another cause of cancer. Infections are responsible for up to 18% of all cancer deaths worldwide, varying from 25 percent in Africa to 10 percent in the developed world. Infections caused by viruses are the main culprits of cancer, but other factors, including bacteria and parasites, may contribute to the development of cancer. Toxic chemicals and radiation are also known to increase the risk of cancer. However, most people do not have any symptoms of cancer when they are infected with a virus.
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