Cancer occurs when certain cells in our body begin to grow abnormally.

Normally, cell divisions are precisely controlled by complex systems in our bodies, most of which are built into the same cell. But when this discipline is lost, the cells grow and build blocks, and if these masses grow, they will eventually “attack” nearby organs, blood vessels and nerves. These lumps are called tumors, and the tumor that continues to grow is called “cancer”.
Cancer cells can spread through the blood or lymphatic system to organs such as the lungs, bones, liver, and brain. There is no human body member immune to cancer. There are also types of cancer that do not form any lumps, but they grow in the blood or bone marrow (the place where blood cells are formed). These cancers are called leukemia or leukemia and can make a person get very sick or stay For a long time before the person becomes very ill (chronic). Some cancers grow from cells in the lymph nodes, which can spread to other lymph nodes. These cancers are called lymphoma or lymphoma.

What causes cancer
What causes cancer?
There is no single reason for cancer. Cancer can be caused by various factors, and the causes of cancer are still largely unknown. However, scientists have been able to determine the possibility of cancer in the body because:

Carcinogenic factors
There are specific factors in the environment that cause cancer and are known as carcinogens or “carcinogens”, which increase the chances of people getting cancer when exposed.
Tobacco smoking, pollution and asbestos are examples of carcinogens that may cause cancer to some people.

Genetic readiness
Some people have more genetic predisposition to develop certain types of cancer, especially if there is a family history.
Certain types of cancer, such as retinoblastoma, are caused by genetic mutations.

What are the risk factors?
Although there are many types of cancers that are not specifically known, scientists have been able to identify the risk factors for certain cancers, which are known to increase the likelihood of these species developing.
Examples of risk factors

Prolonged exposure to direct sunlight is one of the risk factors for skin cancer
Eat unhealthy foods
Genetic predisposition (for example, if you are a woman, and your family member (your mother, sister, aunt, grandmother, grandmother) has been infected with breast cancer, this may increase your risk of infection.
Unsafe exposure to pollutants or radioactivity.
Does this mean that a person with risk factors will have cancer?
No, this is not certain and can not be known with certainty. For example, you can not say that a person who goes out too much in the sun without protection (like wearing a hat or putting on a sun visor) will have cancer definitely, but means that the chance of cancer will be greater compared with people who are keen to take precautions before exposure to the sun .

What if a person does not have any risk factors?
Unfortunately, cancer may affect people who do not have any risk factors. However, people who follow a healthy lifestyle can reduce their risk of developing 40% of cancers, so your health is actually in your hands.