Bladder
Cancer: Definition, Stages, Causes, Symptoms, Risk factors and Prevention-Bladder
is the type of flexible hollow bag. it is situated in the pelvis (it is funnel
type structure at the outlet of the kidney). the main function of the bladder
is to store the urine which is coming out from the kidney. the shape of the
bladder is adjusted accordingly. when the bladder is empty then the shape of
the bladder is like a pear. As we know that the main function of the kidney is
to filter the blood and produce the urine. urine is then further pass through
the tubes called ureters to the bladder.
Bladder
cancer begins when healthy cells in the bladder lining, most commonly
urothelial cells, change and grow out of control, forming a mass called a
tumor. A tumor can be cancerous or benign. A cancerous tumor is malignant,
meaning it can grow and spread to other parts of the body. A benign tumor means
the tumor can grow but will not spread.
The
bladder is a hollow organ in the pelvis with flexible, muscular walls. Its main
function is to store urine before it leaves the body. Urine is made by the
kidneys and is then carried to the bladder through tubes called ureters. When
you urinate, the muscles in the bladder contract, and urine is forced out of
the bladder through a tube called the urethra.
Bladder
cancer Stages
Stage O: The cancer cells are found only on the surface of the
inner lining of the bladder.
Stage I: The tumor has grown deeper into the inner lining of
the bladder. But it hasn’t invaded the muscle layer of the bladder.
Stage II: The tumor has invaded the muscle layer of the bladder.
Stage III: The tumor has grown through the muscle layer to reach
tissues near the bladder, such as the prostate, uterus, or vagina.
Stage IV: The tumor has invaded the wall of the pelvis or
abdomen, but cancer is not found in any lymph nodes. Or, the cancer cells have
spread to at least one lymph node or to parts of the body far away from the
bladder, such as the liver, lungs, or bones.
Bladder
cancer causes and risk factors
- Bladder defects from birth
- Chemotherapy and radiation therapy
- Chronic bladder infections and
irritations
- Exposure to certain chemicals
including aromatic amines
- Low fluid consumption
- Personal or family history of bladder
cancer
- Exposure to arsenic in drinking water
People
who work in the following industries or who have the following professions also
have an increased risk of bladder cancer, likely due to exposure to certain
chemicals:
- Manufacturing of rubber, leather,
textiles and paint products
- Printing
- Painters
- Machinists
- Hairdressers
- Truck drivers.
How
to prevent bladder cancer
Although
there is not a guaranteed method to prevent bladder cancer, people can surely
reduce the risk of getting it. For example, smokers are much more likely to
develop bladder cancer than nonsmokers.
Also,
those exposed to industrial or environmental carcinogens such as azo dyes and
arylamines are at a higher risk. People working with dyes, rubbers, textiles,
paints, pesticides, insecticides, leathers, and chemicals are more vulnerable.
Avoiding
any potential carcinogens by inhalation, ingestion, or direct contact would
certainly reduce risk not only of bladder cancer but also of other cancers.
Nutritional
factors have been widely investigated in cancer prevention.
A
few of those factors seem effective.
Vitamins: Vitamin A, also known as retinol, can be derived from
carotenoids, which are rich in carrots. Vitamin B6 (pyridoxine) has also been
reported to have a potential chemo preventive effect for bladder cancer. Vitamin
C (ascorbic acid) has also been reported to reduce bladder cancer risk, but
high concentration should be avoided because high concentration of Vitamin C
was reported to have an adverse effect. Vitamin E was also reported to decrease
bladder cancer mortality in patients who took vitamin E supplements, but
overdose can be fatal.
Fat consumption: A high intake of saturated fat was associated with a
greater than two-fold increase in the incidence of bladder cancer.
Ingestion of fruits and vegetables: A high intake of cruciferous vegetables, particularly
green and yellow vegetables, has been shown to be linked with a reduced risk of
bladder cancer, especially in nonsmokers
Soy products: The isoflavone gentistein, a natural product, has been
reported to have anti-urothelial cancer activity. Increased intake of soy
products has been linked to reduced risk of breast, colon, and prostate cancer.
Green tea: Epidemiological evidence pointed out that there is an
inverse relationship between green tea consumption and bladder cancer risk
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