What exactly is cancer? What are the types? Look at this and you'll see

What is cancer? For this question, many people are half-knowing, give a lot of answers, such as cancer is tumor, cancer is malignant tumor, cancer is leukemia ... Because of the cancer seems to understand, many people either talk about cancer color change, causing unnecessary panic, or delay the disease.
what exactly is cancer? What is the difference between cancer cells and normal cells? What are the types of cancer? In today's article, we will brief you all! What is cancer? Cancer is not a disease, but the name of a related disease.
all types of cancer, some cells in the body begin to divide and spread to surrounding tissues.
cancer can occur almost anywhere in the body.
the body is made up of trillions of cells, which normally grow and divide to form new cells when the body needs them.
when cells get old or damaged, they die and new cells replace them.
, when cancer occurs and develops, this orderly process collapses.
as cells become more abnormal, longer or damaged, they survive when they should die;
these abnormal cells can continue to divide and form tumors.
many cancers form solid tumors, while blood cancers, such as leukemia, generally do not form solid tumors.
, cancers mainly include malignant tumors and blood cancers.
does cancer cells differ from normal cells? Cancer cells differ from normal cells in many ways, making them out of control and invasive.
important difference is that cancer cells continue to divide and are not "obedient", ignoring signals from the body that normally "tell" the cells to stop dividing, or start a process of procedural death or apoptosis.
normal cells listen to the signal's "arrangement" and remove unwanted cells.
cells can also affect normal cells, molecules and blood vessels around the tumor, an area often referred to as the microenn environment.
, for example, cancer cells can induce normal cells near tumors to form blood vessels, provide the tumor with the oxygen and nutrients it needs to grow, and remove substances that are useless to it in the tumor.
cancer cells are also often able to escape attacks by the immune system.
immune system is a network of organs, tissues and special cells that protect the body from infections and other diseases.
that although the immune system normally removes damaged or abnormal cells from the body, some cancer cells can be "hidden" from the immune system.
tumors can also use the immune system to stay active and grow.
, cancer cells can even manipulate certain immune cells to help them metasnthese, spread, and evade immune system attacks.
types of cancer? The type of cancer is usually named after the organ or tissue it originally formed, such as lung cancer starting in lung cells and brain cancer starting in brain cells.
can also be described by the type of cells that form them, such as cancer, sarcoma, leukemia, lymphoma and myeloma.
cancer refers to malignant tumors that originate from the endocystells and is the most common type of malignant tumor.
skin cells cover the inside and outside of the body, such as skin, digestive organs, chest cavity, abdominal cells.
epithelocytes have different types and can develop into different types of cancer, including squamous cell carcinoma, adenocarcinoma (most breast, colorectal and prostate cancers are adenocarcinoma), cell carcinoma, and substrate cell carcinoma.
sarcoma is a form of cancer in bone and soft tissue, including muscle, fat, blood vessels, lymphatic tubes and fibrous tissues such as tendons and ligaments.
there are two main types of sarcoma: osteosarcoma and soft tissue sarcoma.
osteosarcoma starts in bone cells and is the most common bone cancer;
leukemia is a cancer that originates in myeloid hematosis tissue and is the most common type of cancer in children and does not form a solid tumor.
there are four common types of leukemia, usually grouped according to the rate at which the disease worsens (acute or chronic) and the type of blood cells (lymphocytes or bone marrow) that starts with cancer.
lymphoma is a cancer that starts in lymphocytes (T-cells or B-cells).
in lymphoma, abnormal lymphocytes are concentrated in the lymph nodes, lymphatic tubes, and other organs of the body, with two main types, Hodgkin's lymphoma and non-Hodgkin's lymphoma.
multiple myeloma is a cancer that starts in plasma cells, an immune cell.
is a white blood cell produced in the bone marrow that produces antibodies (immunoglobulins) to help fight infection.
when abnormal plasma cells gather in the bone marrow, tumors can form in the bones.
multiple myeloma is also known as plasma cell myeloma and Kahler disease.
melanoma is a malignant tumor that begins with melanin cells.
melanin cells are special cells that make melanin, the pigment that gives color to the skin.
most melanomas form on the skin, but can also be formed in other pigmented tissues, such as the eyes.
brain and spinal cord tumors are also known as central nervous system tumors.
types of brain and spinal cord tumors, usually named according to the type of cells formed by the tumor and the area first formed in the central nervous system.
, for example, as astromas begin in astrical brain cells, called astrogenic glial cells.
brain tumours can be benign (not cancer) or malignant (cancer).
, there are other types of cancers, such as germ cell tumors, neuroendocrine tumors, and cancers.
conclusion, there are many types of cancer, and the number of cancers is increasing.
only by having a clearer understanding and understanding of cancer can we better prevent and respond to cancer and gain a dominant position in the fight against cancer.
a reference to what Is Cancer? . . Retrieved Nov 18, 2020, from Cancer Basics. Retrieved Nov 18, 2020, from The main types of cancer . Retrieved Nov 18, 2020, from