Causes of Cancer:

No any one exact cause of cancer is known but some causes of cancer are as follows:

Physical Activity:

We can prevent cancer by physical exercises. Physical exercises reduce the cancer risk.

Genetics:

A person at higher risk who has family history of cancer. In the development of cancer genetics play a big role.

Environmental Factors:

Our environment is also responsible for the cancer. Benzene in atmosphere increases the risk of cancer. Benzene is a chemical, which found in gasoline, smoking, and pollution.

Unsafe Sex:

Unsafe sex increases the risk of cancer.

Sun Exposure:

Ultra Violate rays of sun are a cause of skin cancer.

Smoking:

Smoking increase the risk of cancer but not everyone get cancer that smoke.

Age:

An old age people at higher risk of cancer comparatively to young age people.

Immune system:

Problem with immune system is a cause of cancer. A at higher risk who have had organ transplants and take drug to stop organ rejection, have HIV or AIDS, born with rare medical syndromes.

Diet:

Fruits and vegetables in diet reduce the risk of cancer. Alcohol, smoking, meat increase the risk of cancer.

Viruses:

Some viruses and cancer linked together.

Bacterial infection:

Some type of bacteria and cancer is linked together.

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