What is prostate cancer?What are its causes?

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Prostate cancer is the second leading cause of death, after lung cancer. It is highly recommended that at the age of 40, all men should undergo yearly screening process for prostate cancer.

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Causes of prostate cancer

The cause of prostate cancer is unknown but the risk factors for prostate cancer include genetics, advancing age, hormonal effects (testosterone), and some environmental factors which include toxins, industrial products and chemicals.

Age is the most evident risk factor as the chance of developing prostate cancer increases with the advancing age. So, prostate cancer under age 40 is rare and is most common among men over 80.

Genetics, on the other hand, also plays an important role in developing a prostate cancer. However, genetic predispositions can be modified by diet, environment and other unknown factors. No prostate cancer gene has been verified and identified to date.Testosterone, which is the male hormone, stimulates the growth of both normal and cancerous prostate tissue cells.So; this hormone is thought to be actively involved in the growth and development of prostate cancer.

It has been thought now that the growth of prostate cancer can be inhibited if the level of testosterone is decreased. Environmental factors which includes diets that are high in animal fat and cigarette smoking, increases the risk of prostate cancer while a diet high in vegetables and fruit decreases the risk.

Obesity is also one of the many factors that cause a risk of prostate cancer. Some factors that have not been clarified yet include the risk of developing prostate cancer by additional toxins or substances in the environment or chemicals from industrial sources.

According to few studies, it is suggested that vasectomy increases the risk of developing prostate cancer in man.However; it is another point of view that some studies do not support this new finding. An enlarged prostate may, in some cases, be a sign of prostate cancer but it does not necessarily predict it to be a sign of prostate cancer even then a person should be vigilant.

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