Radiotherapy

Radiotherapy, also known as radiation therapy, is a treatment method that uses high-energy radiation to kill cancer cells. It is commonly used in the treatment of various types of cancer, either alone or in combination with other treatments such as surgery and chemotherapy.

Overview

Radiotherapy works by damaging the DNA of cancer cells, which prevents them from dividing and growing. It can be delivered externally, using a machine that directs radiation at the cancer, or internally, through a radioactive substance that is placed inside the body.

Types of Radiotherapy

There are several types of radiotherapy, including:

• External beam radiotherapy (EBRT): This is the most common type of radiotherapy. It involves a machine that directs high-energy beams of radiation at the cancer.
• Internal radiotherapy (Brachytherapy): This involves placing a radioactive substance inside the body, either in or near the cancer.
• Systemic radiotherapy: This involves swallowing or injecting a radioactive substance, which then travels through the body to kill cancer cells.

Side Effects

Like all treatments, radiotherapy can cause side effects. These can vary depending on the type of radiotherapy and the part of the body being treated. Common side effects include fatigue, skin changes, and loss of appetite.

See Also

• Chemotherapy
• Cancer
• Radiation

References

Radiotherapy Resources
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