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What Is Cancer

In: Social Issues

Submitted By JasonH
Words 565
Pages 3
Cancer is a group of diseases that have in common the uncontrolled growth of cells.In most cases the cancer cell form a tumor.Some cancers,like leukemia,rarely form tumors.Instead,these cancer cells involve the blood and blood forming organs and circulate through other tissues where they grow.To understand prostate cancer,it helps to know something about the prostate and near by structures in the body.The prostate is a gland found only in males.It is located in the front of the rectum and below the urinary bladder.The size of the prostate varies with age.In younger men ,it is about the size of a walnut,but it can be much larger in older men.Several types of cancer is found in the prostate,but almost all prostate cancers develop from the gland cells.Gland cells make the prostate fluid that is added to the semen.Other types of cancer can also start in the prostate gland,including sarcomas,small cell carciomas,and transitional cell carciomas.But these types of prostate cancer are so rare that if you have prostate cancer it is almost certain not one of these.Some prostate cancer can grow and spread quickly,but most grow slowly. In fact,autopsy studies show that many older men and even younger men,who died of other diseases also had prostate cancer that never affected them during their lives.In many cases neither they nor their doctors even knew they had it.A risk factor is anything that affects your chance of getting a disease such as cancer.Different cancers have different risk factors.Some risk factors, like smoking,can be changed.Others,like a person’s age or family history can not be changed.But risk factors do not tell us everything.Many people with one or more risk factors never get cancer,while others who get cancer may have few or no know risk factors.We do not yet understand the causes of prostate cancer,but researchers have found several factors that might

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