What is Brachytherapy and How is it Used in Prostate Cancer Treatment?

Brachytherapy, also known as internal radiation therapy, is an effective treatment option for various forms of cancer, including prostate cancer. 

It is a more localized, targeted approach to cancer treatment that can yield significant results. This blog post will discuss what brachytherapy is and how it is utilized in treating prostate cancer.

Understanding Brachytherapy

Brachytherapy is a form of radiation therapy in which a sealed radiation source is placed inside or next to the area requiring treatment. 

Unlike traditional radiation therapy, which attacks cancerous cells from outside the body, brachytherapy works from inside the body, allowing healthcare professionals to deliver higher doses of radiation to more specific areas. 

Radioactive seeds or sources are placed in the body, depending on the type of cancer and its location. In the case of prostate cancer, the radioactive seeds are usually placed directly in the prostate gland.

How Brachytherapy is Used in Prostate Cancer Treatment

There are two common methods of administering brachytherapy in the treatment prostate cancer: low-dose rate (LDR) brachytherapy and high-dose rate (HDR) brachytherapy.

Low-Dose Rate (LDR) Brachytherapy

This is the most common type used for prostate cancer treatment. The doctor inserts tiny radioactive seeds into the prostate gland using needles. 

The seeds, about the size of a grain of rice, are left in place permanently and emit low-level radiation over several weeks or months. 

As time goes on, the radioactivity of the seeds diminishes and they eventually become inactive.

High-Dose Rate (HDR) Brachytherapy

With HDR brachytherapy, radioactive sources are placed into the prostate gland temporarily through catheters for a few minutes at a time. 

The patient may have several treatment sessions over one or two days, after which the radioactive material and catheters are removed.

Advantages of Brachytherapy

Brachytherapy treatment for prostate cancer allows for targeted radiation, minimizing damage to surrounding healthy tissues and organs. 

LDR brachytherapy is typically performed as an outpatient procedure, allowing patients to return home the same day. 

Brachytherapy has been proven effective for treating localized prostate cancer, that is, cancers that haven't spread beyond the prostate gland.

Side Effects and Risks of Brachytherapy

Although brachytherapy has several benefits, as with all treatments, it comes with potential side effects and risks. 

Common side effects include urinary problems, such as frequency, urgency, and discomfort during urination. 

Some men may experience erectile dysfunction or bowel problems. Most of these side effects are temporary and can be managed with medication or lifestyle changes.


Brachytherapy is a powerful weapon in the battle against prostate cancer. It offers a less invasive, more targeted approach to radiation therapy, which can be especially beneficial for localized cases of prostate cancer. 

However, it is essential to discuss with your healthcare team the suitability of this treatment for your specific case, considering potential side effects and long-term impacts on quality of life.


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