Bladder Cancer: Causes, Symptoms, And Treatments

Bladder cancer typically begins in the inner lining of the bladder, the organ that stores urine after it passes from the kidneys. If bladder cancers are caught early, then treatments are highly successful. But bladder cancer tends to come back, so regular check-ups are important.


bladder cancer



Bladder Cancer: Blood in Urine

Blood in the urine can be a sign of bladder cancer, either visible to the eye or picked up by routine testing. The urine may look darker than usual, brownish, or bright red. Most commonly, blood in the urine is not caused by cancer, but by other causes. These include exercise, trauma, infections, blood or kidney disorders, or drugs, such as blood thinners.


Bladder Cancer: Changes

Bladder cancer can sometimes cause changes, including:

  • Needing to go, with little or no results
  • Having to go more often than usual
  • Painful urination
  • Difficulty urinating

Urinary tract infections or bladder stones can cause similar symptoms, but require different treatments.


Bladder Cancer: Smoking Is Big Risk

Although the exact causes of bladder cancer remain unknown, smoking is the leading risk factor. Smokers are about four times more likely to get this cancer than people who have never smoked. Chemicals in tobacco smoke are carried from the lungs to the bloodstream, then filtered by the kidneys into urine. This concentrates harmful chemicals in the bladder, where they damage cells that can give rise to cancer.


Chemical Exposure

Research suggests that certain jobs may increase your risk for this cancer. Metal workers, mechanics, and hairdressers are among those who may be exposed to cancer-causing chemicals. If you work with dyes, or in the making of rubber, textiles, leather, or paints, be sure to follow safety procedures to reduce contact with dangerous chemicals.


Bladder Cancer: Additional Risk Factors

These factors put you at greater risk:

  • Gender: Men are three times more likely to get bladder cancer.
  • Age: Nine out of 10 cases occur over age 55.
  • Race: Whites have twice the risk of African-Americans.

Other factors at play include a family history, previous cancer treatment, certain birth defects of the bladder, and chronic bladder irritation.


Bladder Cancer: Available Tests

There’s no routine test for bladder cancer. A urine test is the first step. If needed, a procedure called cystoscopy lets your doctor see inside the bladder with a slender lighted tube with a camera on the end. The cystoscope can be used to remove small tissue samples to be examined under a microscope.

If cancer is found, imaging tests can show whether it has spread beyond the bladder. An intravenous pyelogram uses dye to outline the kidneys, bladder, and ureters, the tubes that carry urine to the bladder. CT and MRI scans give more detailed images of these, and can show the lymph nodes nearby. An ultrasound uses sound waves, instead of radiation, to produce images. Additional imaging tests look for cancer in the lungs and bone.


Bladder Cancer: Stages

  1.  Cancer stays in the inner lining.
  2. has spread to the bladder wall.
  3. has reached the muscle of the bladder wall.
  4. spread to fatty tissue around the bladder
  5.  spread to the pelvic or abdominal wall, lymph nodes, or distant sites such as bone, liver, or lungs


Bladder Cancer: Surgery

Transurethral surgery is most often done for early-stage cancers. If cancer has invaded more of the bladder, the surgeon will most likely perform either a partial cystectomy, removing a portion of the bladder, or a radical cystectomy, to remove the entire bladder. For men, the prostate and urethra may also be removed. For women, the uterus, fallopian tubes, ovaries, and part of the vagina may also be removed.



Chemotherapy involves drugs designed to kill cancer cells. These drugs are given before surgery to shrink tumors. Chemotherapy is also used to destroy any cancer cells left after surgery and to lower the chances that the cancer will return. Hair loss, nausea, loss of appetite, and fatigue are common side effects. The drugs can be given by vein or directly into the bladder.



Immunotherapy treatments help your body’s immune system attack bladder cancer cells. One treatment, called Bacillus Calmette-Guerin therapy, sends helpful bacteria through a catheter directly to your bladder. Another kind of treatment, called immune checkpoint inhibitors, makes it easier for the immune system to overcome the defenses of cancer cells. These drugs are primarily for advanced cancers and are given by IV about every 2-3 weeks. Flu-like symptoms are a common side effect of these treatments.


Bladder Cancer: Radiation

Radiation uses invisible, high-energy beams, like X-rays, to kill cancer cells and shrink tumors. It’s most often given from outside the body by machine. Radiation is often used in tandem with other treatments, such as chemotherapy and surgery. For people who can’t undergo surgery, it may be the main treatment. Side effects can include nausea, fatigue, skin irritation, diarrhea, and pain when urinating.


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