Radiation

Radiation Treatment for Prostate Cancer?

Radiation therapy is one of the most common and effective treatments for prostate cancer. It uses carefully targeted high-energy radiation to destroy cancer cells while preserving as much healthy surrounding tissue as possible. Depending on the stage and aggressiveness of the cancer, radiation therapy may be used as a primary treatment, combined with hormonal therapy, or recommended after surgery to reduce the risk of recurrence. Every treatment plan is tailored to the individual patient, and your care team will guide you through each step of the process so you understand what to expect before, during, and after treatment.

Before Radiation Treatment

Before beginning radiation therapy, patients undergo a detailed evaluation to determine the best treatment approach. This typically includes a physical examination, a review of medical history, PSA (prostate-specific antigen) blood tests, and imaging studies such as MRI or CT scans. In many cases, a biopsy has already confirmed the diagnosis and helped determine the stage and aggressiveness of the cancer.

Patients also meet with a multidisciplinary care team that may include a urologist, radiation oncologist, and other specialists. During this consultation, the team discusses treatment options, potential benefits, possible side effects, and the expected timeline for therapy.

A key step in the preparation process is a planning session known as a simulation. During this appointment, the patient lies in the same position that will be used during treatment while imaging scans are performed. These scans allow the medical team to precisely map the treatment area and design a radiation plan that targets cancer cells while minimizing exposure to nearby organs such as the bladder and rectum. Small skin marks or temporary tattoos may be placed to help guide accurate positioning during each treatment session.

During Radiation Treatment

Radiation therapy for prostate cancer can be delivered in two primary ways: external beam radiation therapy (EBRT) or brachytherapy.

External Beam Radiation Therapy (EBRT)
This method delivers radiation from a machine outside the body, typically a linear accelerator. The machine directs highly focused beams of radiation toward the prostate from multiple angles. Treatments are usually scheduled five days a week for several weeks, depending on the treatment plan. Each session generally lasts only a few minutes, although positioning and preparation may take longer.

Brachytherapy
Brachytherapy involves placing small radioactive seeds directly inside the prostate gland. These seeds release controlled radiation over time, targeting cancer cells from within the body. Because the radiation is concentrated inside the prostate, surrounding tissues receive less exposure.

During radiation sessions, patients lie still while the treatment machine moves around the body to deliver radiation from different angles. The treatment itself is painless, though some patients may experience mild discomfort from remaining in the same position for several minutes.

After Radiation Treatment

After completing radiation therapy, patients continue to be monitored through regular follow-up appointments. These visits help physicians track recovery and evaluate how well the treatment has worked. Follow-up care typically includes physical examinations, PSA blood tests, and occasionally imaging studies.

Some patients experience temporary side effects during or shortly after treatment. These may include:

Short-term effects

• Fatigue

• Increased urinary frequency or urgency

• Mild discomfort during urination

• Bowel changes such as diarrhea or rectal irritation

• Skin sensitivity in the treatment area

Most short-term side effects gradually improve once treatment is complete.

Possible long-term effects

• Persistent urinary or bowel symptoms

• Erectile dysfunction

• Rarely, secondary cancers in the treated area

Many patients recover well and return to normal activities during or shortly after treatment. Maintaining a healthy lifestyle—including balanced nutrition, regular exercise, and routine medical follow-ups—can help support recovery and overall health.

Hormonal Therapy for Prostate Cancer

Hormonal therapy, also called androgen deprivation therapy (ADT), is often used alongside radiation therapy for prostate cancer. Prostate cancer cells rely on male hormones called androgens, including testosterone, to grow and spread. Hormonal therapy works by reducing the body’s production of these hormones or blocking their effects on cancer cells.

How Hormonal Therapy Works

Hormonal therapy may be delivered in several ways:

LHRH agonists or antagonists
These medications are typically given by injection and work by stopping the testicles from producing testosterone.

Anti-androgen medications
These oral medications block testosterone from attaching to prostate cancer cells.

Orchiectomy
This surgical procedure removes the testicles, which are the body’s primary source of testosterone. While less commonly performed today, it remains an effective option in some cases.

When Hormonal Therapy is Used

Hormonal therapy may be recommended in several situations, including:

• In combination with radiation therapy to improve treatment outcomes

• Before radiation therapy to shrink the prostate or slow cancer growth

• After radiation therapy to reduce the risk of recurrence

• As a primary treatment for advanced or metastatic prostate cancer

Possible Side Effects of Hormonal Therapy

Because hormonal therapy lowers testosterone levels, some patients may experience side effects such as:

• Hot flashes

• Reduced libido or erectile dysfunction

• Weight gain

• Loss of muscle mass

• Decreased bone density

• Fatigue

• Mood changes or emotional fluctuations

Patients receiving hormonal therapy are closely monitored by their medical team. In many cases, lifestyle changes, medications, or supportive therapies can help manage these effects and maintain quality of life.