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What causes polyps in the bladder?

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Quick Answer

Polyps can occur in the bladder as a result of environmental causes, cigarette smoke and exposure to industrial chemicals. The vast majority of bladder polyps are noncancerous, notes MDGuidelines.

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Full Answer

A polyp is an abnormal tissue growth that most commonly occurs in internal organs, such as the uterus, colon or bladder. Most polyps are initially benign but can become cancerous, according to Healthline.

The most common symptoms of bladder polyps are frequent urination, blood in the urine, or tenderness in the bladder region. To determine if polyps are present, a doctor performs a cystoscopy, an imaging test that allows the doctor to visualize the bladder. If a doctor discovers polyps in the bladder, he often performs a biopsy to determine if the growths are malignant or benign, says MDGuidelines.

Bladder polyps can cause a blockage of the urethra and inflammation of the bladder, kidneys or urethra; therefore, doctors recommend surgical removal for most instances of bladder polyps. Only 5 to 10 percent of cases of bladder polyps are malignant, and prognosis following surgery is usually very good. Polyps that are malignant are tumors and may require a more aggressive form of treatment. Bladder polyps carry a risk of recurrence. Doctors recommend monitoring via ultrasound, cystoscopy and urinalysis at frequent intervals following treatment, explains MDGuidelines.

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