What is bladder cancer?

Your bladder is a hollow, stretchy organ in your lower belly. It holds urine (pee) until you go to the bathroom. Bladder cancer starts when cells in the lining of the bladder grow out of control. The most common first sign is blood in the urine. The urine may look pink, red, or brown. Some people also need to pee often, or it burns when they pee.

When should I call my care team?

Fever of 100.4 F (38 C) or higher, or chills; High fever, shaking chills, or feeling very sick after a BCG treatment; Not able to pee, or peeing very little; Heavy blood or clots in the urine; Severe belly, side, or back pain; New rash with blisters, peeling skin, or mouth sores; Very strong thirst, peeing a lot more than usual, or confusion; Sudden changes in vision; New cough or shortness of breath, especially on immunotherapy; Severe diarrhea, or diarrhea with belly pain or blood; Stoma that turns dark, purple, or black, or stops putting out urine; Swelling or pain in one leg.

What chemotherapy plans are used for bladder cancer?

Common treatment plans include Dose-dense MVAC, Gemcitabine and cisplatin. Your care team picks the plan that fits your cancer and your health.

Bladder cancer

Bladder cancer is often found early, and there are more good treatment choices today than ever before.

Hi, I'm Rosa. Today we'll go through bladder cancer together, one step at a time. I'll keep it simple, and you can pause me, go back, or skip ahead whenever you like. Just so you know, this is for learning only. It is not medical advice, so please check everything with your own doctor and care team. Okay, let's get started.

What bladder cancer is

Let's start with the basics. Your bladder is a hollow, stretchy organ in your lower belly. It holds urine until you go to the bathroom. Bladder cancer starts when cells in its lining grow out of control. The most common first sign is blood in the urine. Smoking is the biggest risk factor. Some chemicals at work can raise the risk too. Here is some good news. Many bladder cancers are found early. Treatment has improved a lot. Your care team will explain what this means for you.

The main types

Let's talk briefly about the types. Urothelial carcinoma is the most common type by far. It starts in the cells that line the bladder. Some cancer stays in the inner lining only. This is the most common way it is found. Some cancer grows into the bladder muscle. That kind needs stronger treatment. Carcinoma in situ means flat cancer cells on the lining. The same cancer can also start in the kidney. Other types are less common. Your care team will tell you which type you have.

Tests you may have

Now let's talk about tests. Urine tests check for blood and cancer cells. A cystoscopy uses a thin tube with a camera. It lets the doctor see inside the bladder. A surgery through the urethra can remove the tumor. It also shows how deep the cancer goes. CT scans or MRI make detailed pictures of the kidneys and bladder. A PET scan may show if the cancer has spread. Blood tests check your blood counts and kidneys. Your team may also check your hearing and nerves.

What the stage means

Next up, let's talk about stages. The stage tells how deep the cancer has grown into the bladder wall. It also tells if it has spread. The grade tells how unusual the cells look. Why do doctors use stages? They help your care team plan treatment. They also help everyone talk the same language. For early cancer, your team also sorts the risk. This helps decide how much treatment you need. Your doctor will explain what your stage means for you.

Markers and gene tests

Before we move to treatment, there are some things to know. For cancer that has spread, your tumor may be tested. These tests look for certain gene changes and proteins. The results can open up more treatment choices. There are different markers. Each one has a different role. Some people are also offered tests for inherited gene changes. Your doctor will tell you which markers you have. They will also explain what they mean. You can read more in the guide. The Questions to ask page can help too.

Main treatment options

Now let's look at treatment. For early cancer, the tumor is removed through the urethra. Then medicine is often put right into the bladder. One kind wakes up the immune system inside the bladder. For deeper cancer, surgery may remove the whole bladder. The surgeon then makes a new way for urine to leave. For some people, the bladder can be kept, using radiation and chemotherapy. For cancer that has spread, medicines travel through the whole body. Clinical trials are research studies that may offer new options. Ask your care team.

Side effects and what helps

Let's talk about side effects. Bladder treatments can cause burning or needing to pee often. Drinking fluids helps. Some treatments cause a mild fever or aches for a day or so. Some medicines can cause numbness in the hands and feet. Tell your team early. A new rash should be reported right away. Chemotherapy can make you tired and lower your blood counts. Short walks and rest help. Have a stoma? A nurse will teach you how to care for it. We have a whole side effects guide on this site.

Living well with it

Last, let's talk about living well. Bladder cancer often comes back. That is why regular checkups matter so much. If you smoke, quitting is one of the best things you can do. If your bladder was removed, it takes time to adjust. Nurses and support groups can help a lot. It is normal to feel worried or tired. Call right away for a fever. Also call if you cannot pee. Heavy blood in the urine needs a call too. If it feels very bad, call 911. Also see our new Screening, prevention and survivorship section.

You did great today. That was a lot, and you took it one step at a time. Write down your questions and bring them to your next visit. Call your care team any time something worries you. You are not alone in this.

Call your care team right away if you have

Fever of 100.4 F (38 C) or higher, or chills
High fever, shaking chills, or feeling very sick after a BCG treatment
Not able to pee, or peeing very little
Heavy blood or clots in the urine
Severe belly, side, or back pain
New rash with blisters, peeling skin, or mouth sores
Very strong thirst, peeing a lot more than usual, or confusion
Sudden changes in vision
New cough or shortness of breath, especially on immunotherapy
Severe diarrhea, or diarrhea with belly pain or blood
Stoma that turns dark, purple, or black, or stops putting out urine
Swelling or pain in one leg

Treatment plans (regimens)

Medicines often used

Side effects: what helps

Sources

Quick answers

What is bladder cancer?: Your bladder is a hollow, stretchy organ in your lower belly. It holds urine (pee) until you go to the bathroom. Bladder cancer starts when cells in the lining of the bladder grow out of control. The most common first sign is blood in the urine. The urine may look pink, red, or brown. Some people also need to pee often, or it burns when they pee.
When should I call my care team?: Fever of 100.4 F (38 C) or higher, or chills; High fever, shaking chills, or feeling very sick after a BCG treatment; Not able to pee, or peeing very little; Heavy blood or clots in the urine; Severe belly, side, or back pain; New rash with blisters, peeling skin, or mouth sores; Very strong thirst, peeing a lot more than usual, or confusion; Sudden changes in vision; New cough or shortness of breath, especially on immunotherapy; Severe diarrhea, or diarrhea with belly pain or blood; Stoma that turns dark, purple, or black, or stops putting out urine; Swelling or pain in one leg.
What chemotherapy plans are used for bladder cancer?: Common treatment plans include Dose-dense MVAC, Gemcitabine and cisplatin. Your care team picks the plan that fits your cancer and your health.

Last updated: 2026-10-27. Medically reviewed by Veli Bakalov, MD, medical oncologist (October 2026). General education from Step by Step, the patient portal of HemeOncBuddy.