Facing Bladder Cancer? Here Is Everything You Need to Know About BCG Treatment

Did your doctor recently tell you or someone you love that you have bladder cancer? Did they also recommend a special treatment called BCG?

Hearing these words for the first time can feel very scary and overwhelming. You probably have many questions running through your mind right now.

What is BCG? How does it work inside your body? Will you experience bad side effects? Take a deep breath and relax. We will walk through everything you need to know in simple, clear everyday language.

What Is BCG Treatment?

To put it simply, BCG is a main type of immunotherapy used to treat early-stage bladder cancer. Immunotherapy means a treatment that stimulates or wakes up your body's own immune system to fight off the cancer.

This treatment belongs to a group called intravesical therapy. This means the medicine is not given as a pill you swallow or an injection in your arm. Instead, a doctor or nurse uses a catheter, which is a thin, flexible tube, to put the liquid medicine directly inside your bladder.

BCG stands for Bacillus Calmette-Guerin. It is actually a weakened live bacteria. Scientists make it from the exact same bacteria used to create the vaccine for tuberculosis. When this bacteria goes inside your bladder, it wakes up your immune cells and orders them to attack the cancer cells.

Think of it like calling in your body's own trained security guards to fight the intruders. Your immune system uses its natural strength to clear out the cancer.

One huge advantage of this treatment is that it focuses directly on the cancer cells inside your bladder. It does not cause widespread effects across the rest of your body.

Doctors usually start BCG treatment after a surgery called TURBT, which stands for Transurethral Resection of Bladder Tumor. During that surgery, the surgeon removes any visible tumors from your bladder wall. Afterward, doctors use BCG treatment to destroy any tiny microscopic cancer cells left behind.

What Are the Side Effects of BCG Treatment?

Just like any medical treatment, BCG can cause certain side effects. However, most of these side effects are temporary and easy to manage. You might notice some of these symptoms during the first 24 hours after your treatment session.

Actually, having some mild side effects can be a good sign. It often means your immune system is reacting properly and fighting the cancer cells. Some doctors believe that having a mild immune response is better than having no symptoms at all.

How Long Do These Side Effects Last?

Most common side effects fade away within two to three days after your treatment. Some people even feel relief as soon as they empty their bladder after the required retention time.

However, if your symptoms last longer than three days, or if they become very intense and painful, you must contact your doctor right away for guidance.

How to Prepare for BCG Treatment?

Your medical team will give you specific instructions before your treatment session. Following these steps helps make the procedure as safe and smooth as possible.

• Avoid Caffeine: Stay away from coffee, tea, and caffeinated sodas on the day of your treatment to reduce bladder irritation.
• Empty Your Bladder: Make sure you go to the bathroom and empty your bladder completely right before the procedure starts.
• Limit Fluids: Do not drink large amounts of water on the morning of your treatment. Being slightly dehydrated helps your bladder hold the medicine inside for two hours without getting too full too fast.
• Disclose Medicines: Tell your doctor right away if you are taking antibiotics for any other health issue. Antibiotics can kill the BCG bacteria and stop the treatment from working properly.

During the appointment, your doctor or nurse will numb the area around your urethra to keep you comfortable. Then, they insert a thin catheter to place the liquid BCG medicine inside your bladder before removing the tube. You must try to hold the medicine in your bladder for about two hours without going to the bathroom.

Very Important: Is BCG Treatment Contagious to Others?

Yes, you must be very careful with this step. Because the BCG treatment contains live bacteria, your urine can carry those bacteria for the first six hours after your session. This means you can accidentally expose other people to the bacteria if you are not careful.

To protect your family members and household pets, follow these safety rules closely:

• Use a Private Toilet: Avoid public restrooms for the first 24 hours. Use a designated home toilet if possible.
• Sit Down to Urinate: Both men and women should sit down on the toilet seat when urinating to prevent splashing.
• Drink Plenty of Water: After holding the medicine for two hours and releasing it, drink plenty of water to flush out your system.
• Clean the Toilet Properly: After you finish urinating, pour two cups of household bleach into the toilet bowl. Close the lid and let it sit for 15 to 20 minutes before flushing. Do this every time you use the bathroom for the first six hours.
• Wash Soiled Clothes Right away: If any urine gets on your clothes or underwear, wash them separately right away. Do not mix them with other laundry.
• Avoid Sexual Intercourse: Stay away from sexual activity for a few days after treatment. Use a condom for every act of intercourse throughout your entire treatment course.

How Successful Is BCG Treatment?

BCG is currently one of the most successful treatments available for early-stage bladder cancer and superficial tumors.

• High Remission Rates: Following a full course of BCG treatment, around 70 percent of patients achieve complete remission, meaning the cancer disappears.
• Resistant Cases: For about 20 to 30 percent of patients, the treatment may not work as hoped. Doctors refer to these cases as BCG-unresponsive.
• Preventing Spread: Even if cancer returns later, BCG helps prevent the tumor from turning into a dangerous, invasive form of cancer.

While these numbers can vary, remember that BCG remains the gold standard and best available option for this stage of bladder cancer. Stay in close contact with your urologist and attend all your follow-up appointments, including your regular cystoscopy checks.

Take-Home Message

• BCG is a powerful immunotherapy treatment that trains your own immune system to attack and destroy bladder cancer cells.
• Mild side effects like low fever and bladder burning are normal and often indicate that your immune system is responding.
• If your fever climbs above 101.3°F (38.5°C), treat it as a medical emergency and call your doctor or visit the nearest emergency room.
• Your urine is contagious for the first six hours after treatment, so practice strict bathroom hygiene and bleach cleaning.
• Always use a condom during sexual intercourse throughout your entire treatment period.
• Keep in touch with your medical care team, follow their instructions carefully, and never miss your scheduled tests.

Sources & References

• American Cancer Society. (2024). Intravesical BCG Therapy for Bladder Cancer. cancer.org.
• Mayo Clinic. (2023). Bladder Cancer Treatment - BCG Therapy. mayoclinic.org.
• National Health Service (NHS). (2023). BCG Vaccine and Bladder Instillation Therapy. nhs.uk.
• Cleveland Clinic. (2022). Intravesical Therapy for Bladder Cancer: What to Expect. clevelandclinic.org.
• Centers for Disease Control and Prevention (CDC). (2023). Understanding Immunotherapy and Infection Safety. cdc.gov.