Bladder cancer


Overview

Page last updated: May 2024

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Bladder cancer begins when cells in the lining of the bladder (urothelium) become abnormal. This causes the cells to grow and divide out of control. As the cancer grows, it may start to spread into the deeper layers of the bladder wall.

Some cancer cells can also break off and travel outside the bladder to other parts of the body (e.g. lymph nodes, lungs, bones or liver).

The bladder

Upper Tract Urothelial Cancer

Urothelial carcinoma occasionally starts in a ureter or part of a kidney. This is known as upper tract urothelial cancer.

For information about how this cancer is diagnosed and treated, see our Understanding Upper Tract Urothelial Cancer fact sheet.

Learn more

Main types of bladder cancer

There are three main types of bladder cancer, which are named after the cells they start in:

  • urothelial carcinoma (80–90% of all bladder cancers) – starts in the urothelial cells lining the bladder wall. It is also called transitional cell carcinoma (TCC). Includes two rarer subtypes (plasmacytoid and micropapillary), which are more aggressive.
  • squamous cell carcinoma (1–2% of all bladder cancers) – starts in thin, flat squamous cells in the bladder lining. It is more likely to be invasive.
  • adenocarcinoma (about 1% of all bladder cancers) – develops from the glandular cells in the bladder. It is usually invasive.

There are also rarer types of bladder cancer. These include sarcomas, which start in the muscle, and an aggressive form called small cell carcinoma.

 

How common is bladder cancer?

Each year, almost 3100 Australians are diagnosed with bladder cancer. Most people diagnosed with bladder cancer are 60 or older, but it can occur at any age.

About one in every 140 males will be diagnosed with bladder cancer before age 75, making it one of the 10 most common cancers in males.

For females, the risk is about one in 560, although it is often diagnosed at an advanced stage.

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Symptoms of bladder cancer

Sometimes bladder cancer doesn’t have many symptoms and is found when a urine test is done for another reason. However, most people with bladder cancer do have some symptoms, which can include:

  • Blood in the urine (haematuria) – this is the most common symptom of bladder cancer. It often happens suddenly, but is usually not painful. There may be only a small amount of blood in the urine, and it may look red or brown. The blood may come and go, or it may appear only once or twice.
  • Changes in bladder habits – changes may include a burning feeling when passing urine (weeing or peeing), needing to pass urine more often or urgently, not being able to urinate when you feel the urge, and pain while urinating.
  • Other symptoms – less commonly, people have pain in one side of their lower abdomen (belly) or back. They may also lose their appetite and lose weight.

Not everyone with these symptoms has bladder cancer, but if you do have any or are concerned, see your doctor as soon as possible.

If you notice any blood in your urine, see your doctor and arrange to see a specialist to have your bladder examined. The earlier bladder cancer is detected, the easier it is to treat.

Risk factors

Research shows that people with certain risk factors are more likely to develop bladder cancer. These include:

  • Smoking cigarette smokers are up to three times more likely than non-smokers to develop bladder cancer.
  • Older age – about 90% of people diagnosed with bladder cancer in Australia are over 60.
  • Being male – men are around three times more likely than women to develop bladder cancer.
  • Chemical exposure at work – chemicals called aromatic amines, benzene products and aniline dyes are linked to bladder cancer. These chemicals are used in rubber and plastics manufacturing, in the dye industry, and sometimes in the work of painters, machinists, printers, hairdressers, firefighters and truck drivers.
  • Parasitic bladder infections – squamous cell carcinoma of the bladder has been linked to a parasitic bladder infection called schistosomiasis. This is very rare in people born in Australia; it is caused by a parasite found in fresh water in Africa, Asia, South America and the Caribbean.
  • Long-term catheter use – using urinary catheters over a long period may be linked with squamous cell carcinoma of the bladder.
  • Previous cancer treatments these include the chemotherapy drug cyclophosphamide and radiation therapy to the pelvic area.
  • Diabetes treatment – the diabetes drug pioglitazone can increase the risk of bladder cancer.
  • Personal or family history having one or more close blood relatives diagnosed with bladder cancer, or having inherited a gene linked to bladder cancer, slightly increases the risk of bladder cancer.

Learn more about preventing cancer

Health professionals you may see

Your general practitioner (GP) will arrange the first tests to assess your symptoms. If these tests do not rule out cancer, you will usually be referred to a specialist called a urologist.

The specialist will arrange further tests. If bladder cancer is diagnosed, the urologist will consider treatment options. Often the urologist will discuss your treatment options at what is known as a multidisciplinary team (MDT) meeting.

During and after treatment, you will see a range of health professionals who specialise in different aspects of your care, including a continence nurse, stomal therapy nurse, dietician and exercise physiologist, among others.

Question checklist

 

Understanding Bladder Cancer

Download our Understanding Bladder Cancer booklet to learn more

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