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This method of treatment uses the same type of energy as X-rays, but in different forms.

When delivered by an external machine, the energy is directed in a tightly concentrated beam.  It can be focused in such a way that destruction to nearby tissues is minimized, targeting cancerous tumors with amazing precision.

Radiation is often used to shrink a tumor in advance of surgery so it can be more easily removed. It can also be used after surgery to help kill any cancers cells that might have survived the operation. Under some circumstances, radiation is combined with chemotherapy. 

  • External radiation

This method of treatment uses the same type of energy as X-rays, but in different forms.

When delivered by an external machine, the energy is directed in a tightly concentrated beam.  It can be focused in such a way that destruction to nearby tissues is minimized, targeting cancerous tumors with pinpoint precision. A typical radiation regimen involves treatments five days per week, for several weeks.

  • Internal radiation

Radiation therapy can also come in the form of brachytherapy.  Numerous small, rice-shaped pellets that emit radiation are implanted directly into the prostate. Guided by ultrasound, your doctor will use a small needle to place the pellets.  The pellets deliver a dose of radiation that declines over time, and do not need to be removed later.

Radiation is often used to shrink a tumor in advance of surgery so it can be more easily removed. It can also be used after surgery to help kill any cancers cells that might have survived the operation. Under some circumstances, radiation is combined with hormonal therapy

Radiation carries side effects that can vary in intensity. They might include painful, frequent and/or urgent urination, as well as loose stools, painful bowel movements and erectile dysfunction.

This method uses high-powered beams of tightly focused X-ray energy to kill cancer cells. Radiation therapy is often used on the seminoma form of testicular cancerRadiation therapy may cause infertility, but it's often temporary.  Side effects include fatigue, skin redness and a certain level of irritation in the groin and abdominal regions.

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