Radiation Therapy: How It Works & What to Expect

What is Radiation Therapy?

Radiation therapy is a common cancer treatment. It uses high-energy rays to target and destroy cancer cells. Doctors often use it to shrink tumors or stop cancer from spreading. Sometimes, radiation therapy is used alone. Other times, it works with surgery or chemotherapy. Many people receive this treatment in hospitals or special clinics.

How Does Radiation Therapy Work?

Radiation therapy works by damaging the DNA inside cancer cells. Because of this, the cells cannot grow or divide. Over time, the body removes these damaged cells. Healthy cells can also be affected, but they usually recover better than cancer cells. For this reason, doctors plan each treatment carefully to protect healthy tissue.

Types of Radiation Therapy

There are two main types of radiation therapy. Each type is chosen based on the cancer’s location and size.

External Beam Radiation: This is the most common type. A machine outside the body aims radiation at the cancer. Treatments are usually given over several days or weeks.

Internal Radiation (Brachytherapy): In this method, doctors place a small source of radiation inside the body, close to the cancer. This type is often used for cancers of the prostate, cervix, or breast.

Sometimes, doctors use both types together for better results.

What to Expect During Treatment

Before starting, you will meet with a radiation oncologist. This doctor will explain the process and answer your questions. Next, you may have a planning session called simulation. During this, the team will mark the exact area to treat. They may use special masks or molds to help you stay still.

During each session, you will lie on a table. The machine moves around you but does not touch you. Treatments are painless and last only a few minutes. However, you may spend more time getting ready. Most people receive treatment five days a week for several weeks. After each session, you can go home and continue your normal activities.

Common Side Effects and How to Manage Them

Although radiation therapy targets cancer, it can also affect healthy cells. Because of this, some side effects may occur. Most side effects depend on the area being treated. Common side effects include:

Fatigue: Many people feel tired during treatment. Resting often and staying hydrated can help.

Skin Changes: The skin in the treated area may become red, dry, or itchy. Using gentle skin care products can reduce discomfort.

Hair Loss: Hair may fall out in the area receiving radiation. This is usually temporary.

Other Symptoms: Depending on the treatment area, you may have a sore throat, upset stomach, or changes in appetite.

However, most side effects go away after treatment ends. If you notice severe symptoms, tell your doctor right away. They can suggest ways to help you feel better.

Tips for Patients Undergoing Radiation Therapy

Going through radiation therapy can be challenging. Still, there are ways to make it easier:

Follow your doctor’s instructions closely.

Eat healthy foods to keep your strength up.

Drink plenty of water each day.

Get enough rest and listen to your body.

Use gentle soaps and lotions on treated skin.

Ask for help from family or friends if you need it.

Talk to your care team about any worries or side effects.

Additionally, many hospitals offer support groups or counseling for patients and families.

Frequently Asked Questions

Is radiation therapy safe? Yes, doctors use strict safety rules. The benefits often outweigh the risks. According to the World Health Organization, radiation therapy is a proven and safe cancer treatment when used correctly.

Will I be radioactive after treatment? No, with external beam radiation, you are not radioactive. However, if you have internal radiation, you may need to avoid close contact with others for a short time.

Can I work during radiation therapy? Many people continue working. However, you may need to adjust your schedule if you feel tired.

How do I prepare for radiation therapy? Your care team will give you instructions. Usually, you do not need to do much to prepare. Still, it helps to wear comfortable clothes and bring a list of your medicines.

Where can I get radiation therapy? Most large hospitals and cancer centers offer this treatment. In some areas, you may need to travel to a nearby city for care.

Conclusion

In summary, radiation therapy is a safe and effective way to treat many types of cancer. While side effects can happen, most are mild and go away after treatment. If you have questions or concerns, always talk to your doctor. Consult a oncology specialist  Dr Qazi Ashraf to discuss your personalized treatment options.