Causes of cancer ..

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Causes of cancer

Do you know the causes of cancer?

You will be unaware of these cancer causes

So in this article of My Health Only, we are going to tell the cancer causes, By know causes of cancer you will be able to treat it as soon as possible.

Let’s know what are the causes of cancer ..

Cancer is a broad group of diseases and has many causes. Several genetic and environmental factors increase the risk of developing cancer. According to each biology and pathology, each cancer is of different types. According to the World Health Organization (WHO), the following are common factors for cancer:

  1. The cause of cancer is genetic –

Genetic changes that cause cancer can be inherited from our parents. Some families are at a significantly higher risk of developing certain types of cancer. Sometimes there is a risk of its growth due to a single gene. Mutations affecting serious genes are known to contribute to the development of cancer. These genes produce proteins that regulate growth and alter cell division and other basic cell properties.

An extra or abnormal chromosome may increase the risk of cancer. For example, people with Down syndrome have three copies of chromosome 21 instead of the usual two copies. They have a 12 to 20 times higher risk of developing leukemia.

  1. The causes of cancer related to age –

Some cancers such as Wilms’ tumor, retinoblastoma, and neuroblastoma occur especially in children. These cancers originate from suppressor gene mutations that are either inherited or occur during embryonic development. However, most other cancers are more common in adults, especially in older people. The growth rate of cancer is probably due to prolonged exposure to carcinogens.

  1. Environmental factors are the cause of cancer –

Several environmental factors increase the risk of developing cancer.

Tobacco smoke contains carcinogens that significantly increase the risk of lung, mouth, throat, esophagus, kidney and bladder cancer. People who smoke also have an increased risk of lung cancer.

Pollutants in the air or water, such as asbestos, industrial waste or cigarette smoke, can increase the risk of cancer. Many chemicals are known to cause cancer. For example, exposure to asbestos may cause lung cancer and mesothelioma (lung cancer). Staying in contact with pesticides is associated with some types of cancer (eg, leukemia and non-Hodgkin lymphoma). The reason between the development of chemicals and cancer is due to prolonged exposure to the chemical.

Exposure to radiation is a major reason for the development of cancer. The exposure to ultraviolet radiation is mainly from sunlight which causes skin cancer. Ionization radiation is a special carcinogen. X-rays (including computed tomography [CT]) use ionization radiation and people who have multiple tests using high doses of X-rays have an increased risk of cancer. Exposure to radioactive gas radon (which is released from soil) increases the risk of lung cancer.

Several other substances are investigating possible causes of cancer, but more studies are needed to identify chemicals that increase the risk of cancer.

Causes of cancer
· People who smoke are X more likely to die from lung cancer · 90% of lung cancer deaths in men and 80% in women are caused from smoking · Cigarettes contain > 4000 chemicals, at least 43 of which are carcinogenic · Quitting smoking will ↓ risk for lung cancer ∙ The more cigarettes smoked and the longer a person smokes ↑ risk for lung cancer
  1. Poor diet is the cause of cancer.

Dietary foods can increase the risk of cancer. For example, a diet rich in unsaturated fat and obesity is associated with an increased risk of colon, breast and possibly prostate cancer. Those who drink large amounts of alcohol have a higher risk of developing head, neck, and anophageal cancer. Spicy food or excessive consumption of barbecued meat may increase the risk of colon cancer. People who are overweight or obese are at greater risk of breast cancer.

  1. Drugs and Medical Treatment Increase Cancer Risk –

Certain medications and medical treatments can increase the development of cancer. For example, estrogens present in oral contraceptives may gradually increase the risk of breast cancer, although this risk decreases over time. The hormones estrogen and progestin given to women during menopause (hormone replacement therapy) also increase the risk of breast cancer.

Excess estrogen levels promote uterine cancer. Tamoxifen is a drug used to treat breast cancer which increases the risk of endometrial cancer. Long-term use of testosterone or other male hormones (androgens) may also increase the risk of liver cancer. Treatment of cancer with some chemotherapy drugs (radiation agents) and radiation therapy may subsequently increase the risk of developing other cancers.

  1. Cancer causes infection –

Many viruses are known to cause cancer in humans and many other viruses are suspected to cause cancer. Human papilloma virus is a major cause of cervical cancer in women and a cause of penile and anal cancer in men. HPV also causes some cancers of the throat. Hepatitis B virus or hepatitis C virus can cause liver cancer. Some human retroviruses are caused by lymphoma and other cancers of the blood system. Some viruses cause one type of cancer in some countries, but in other countries there are other types of cancer. For example, Epstein-Barr virus causes Burkitt lymphoma (a type of cancer) in Africa and nasal and pharyngeal cancer in China.

Some bacteria may also cause cancer. Helicobacter pylori that causes stomach ulcers may increase the risk of stomach cancer and lymphoma.

Some parasites can cause cancer. Schistosoma haematobium can cause bladder inflammation and lesions that can lead to cancer. Another type of the parasite, Opisthorchis sinensis, has been linked to cancer of the pancreas and bile ducts.

  1. Inflammatory disorders are due to cancer disease –

Inflammatory disorders often increase the risk of cancer. Such disorders include ulcerative colitis and Crohn disease, which can result in colon cancer and bile duct cancer.

  1. Poor immunity is one of the causes of cancer –

Poor immunity causes many cancers, including HIV infection, including Kaposi sarcoma, non-Hodgkin’s lymphoma, and HPV-associated anal cancer and cervical cancer.