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Overview
What Is Bladder Cancer?
Bladder cancer is a disease in which abnormal cells grow in the bladder and form a tumor. Most cases begin in the urothelial lining, the inner layer that also lines parts of the urinary tract. The disease may remain near the surface or grow into deeper bladder muscle and spread to other areas. Bladder cancer can affect people of any sex, and its risk varies with age, sex, smoking, and other exposures.
Symptoms
Bladder Cancer Symptoms
- Blood in the urine may make urine pink, red, or cola-colored, or may only be detected on testing.
- Needing to urinate often or urgently can occur even when the bladder is not full.
- Pain or burning with urination can occur but is also common with infection.
- Difficulty starting the urine stream or having a weak stream may occur.
- Pelvic, side, or lower back pain can occur, especially with more advanced disease.
Important
Do not ignore persistent symptoms
Bladder cancer symptoms can resemble a urinary tract infection, kidney stone, or other condition. Persistent or unexplained blood in the urine should be assessed, even if urinary symptoms temporarily improve after infection treatment.
Causes
What Causes Bladder Cancer?
Genetic changes can cause cells in the bladder lining to grow and survive abnormally, eventually forming a tumor. Some tumors stay in the superficial layers, while others invade deeper layers of the bladder. These changes may build up over time from exposures, aging, or chance. In many people, no single cause can be identified.
Common bladder tumor types
Urothelial carcinoma is the most common type of urinary bladder cancer. Less common types include squamous cell carcinoma and adenocarcinoma, which develop from different bladder cell types. Smoking and certain workplace chemical exposures are established contributors, but many people develop bladder cancer without one clearly identifiable cause.
Risk Factors
Bladder Cancer Risk Factors
MODIFIABLE RISKS
Tobacco use, some workplace chemicals, and preventable chronic bladder irritation may increase risk. Following workplace safety guidance and stopping tobacco use can reduce exposure-related risk.
MEDICAL RISKS
Older age, male sex, prior pelvic radiation or certain chemotherapy, chronic bladder conditions, family history, and rare inherited syndromes may increase risk. Having one or more risk factors does not mean that someone will develop cancer.
Side Effects & Complications
Complications and Treatment Side Effects
Possible disease complications
- Bladder tumors may cause urinary blockage, kidney problems, bleeding, anemia, pain, or spread to nearby lymph nodes and distant organs.
- Procedures may cause temporary bleeding, infection, urinary leakage, or irritation.
- Intravesical treatment may cause urinary urgency, frequency, burning, or bladder irritation.
- Surgery or radiation may affect bowel function, urinary control, fertility, or sexual function.
- Systemic treatment may cause fatigue, nausea, immune-related effects, or nerve symptoms depending on the medicine.
When to contact the care team
Report serious changes promptly
Contact the oncology team promptly for fever, inability to urinate, heavy bleeding, severe pain, or symptoms of a serious reaction to a medicine. Follow the instructions given for after-care because the right response depends on the treatment received.
Diagnosis & Staging
How Bladder Cancer Is Diagnosed and Staged
- A clinician reviews symptoms, medical history, smoking and workplace exposures, and urine tests for blood, infection, or abnormal cells.
- Cystoscopy uses a small camera passed through the urethra to inspect the inside of the bladder.
- A biopsy or transurethral resection removes tissue or a visible tumor so a pathologist can confirm the diagnosis and assess grade.
- CT, MRI, or other imaging may be used to evaluate the urinary tract, lymph nodes, or possible spread when indicated.
Grade and stage
Grade describes how abnormal and aggressive the cancer cells look under a microscope. Stage describes how far the cancer has grown, including whether it has invaded bladder muscle, reached lymph nodes, or spread to distant organs. Together, grade and stage help guide treatment and prognosis.
| Category | What it means | Why it matters |
|---|---|---|
| Non-muscle-invasive | Limited to the inner layers | Often managed with bladder-sparing treatment and surveillance |
| Muscle-invasive | Extends into the bladder muscle | Usually requires more intensive local or systemic treatment |
| Metastatic | Has spread beyond the bladder | Treatment focuses on controlling disease throughout the body |
Treatment Options
Bladder Cancer Treatment Options
SURGERY
Transurethral resection removes tumors through the urethra. Partial or radical cystectomy removes part or all of the bladder when disease is deeper or more extensive, sometimes with urinary diversion.
BLADDER-DIRECTED THERAPY
Intravesical chemotherapy or BCG is placed directly into the bladder to reduce the risk of recurrence or progression in selected non-muscle-invasive cancers.
SYSTEMIC CARE
Chemotherapy, immunotherapy, targeted medicines, antibody-drug conjugates, radiation, or clinical trials may be used according to stage, tumor features, overall health, and treatment goals.
Treatment selection depends on stage, grade, tumor number and location, kidney function, overall health, previous treatment, and patient preferences. Urologists, medical and radiation oncologists, pathologists, and other specialists may work together to plan care. Clinical trials can provide access to newer approaches when appropriate.
Prevention
Can Bladder Cancer Be Prevented?
- Do not smoke, or seek support and evidence-based treatment to help quit if you use tobacco.
- Follow workplace safety practices when handling chemicals linked with bladder cancer risk.
- Maintain adequate hydration when medically appropriate and follow advice for any kidney or heart condition that limits fluids.
- Discuss persistent urinary symptoms or blood in the urine with a clinician rather than treating them repeatedly without reassessment.
Screening note
Routine screening is not advised
There is no routine screening test recommended for average-risk people who have no symptoms. People with substantial risk or a history of bladder cancer may need an individualized surveillance plan from their care team.
Outlook and Prognosis
Bladder Cancer Outlook and Prognosis
Many early bladder cancers are treatable, but they can return, making regular follow-up important. Invasive or metastatic disease may require ongoing treatment to control cancer and protect quality of life. Whether bladder cancer can be cured depends largely on stage, grade, tumor biology, response to treatment, and overall health. Some advanced cancers are managed as a long-term condition rather than with a single definitive treatment.
Stage
The depth of invasion and whether cancer has spread
Grade
How aggressive the cells appear under a microscope
Tumor biology
Features that influence growth and treatment response
Overall health
Health, treatment tolerance, and response to care
Survivorship & Follow-up
Survivorship and Follow-Up
After bladder-sparing treatment, scheduled cystoscopy and other tests monitor for recurrence in the bladder and urinary tract. Bladder removal greatly changes where recurrence may occur, but it does not eliminate the need for oncology follow-up because recurrence can involve nearby tissues or distant parts of the body. Follow-up timing depends on tumor features, treatment, and overall health.
- Continue smoking cessation support because stopping tobacco can benefit overall health and may reduce additional bladder cancer risk.
- Ask about pelvic-floor, urinary, or other rehabilitation when changes in bladder function affect daily life.
- Discuss sexual health, fertility, body image, and intimacy concerns with a qualified member of the care team.
- Use emotional support, counseling, or cancer support groups if worry, depression, or adjustment becomes difficult.
- Maintain nutrition and activity as tolerated, and coordinate care among urology, oncology, and primary care clinicians.
When Should You See a Doctor
When Should You See a Doctor?
Make an appointment
Have urinary changes checked
Arrange medical evaluation for any visible blood in the urine, recurrent microscopic blood, unexplained urinary symptoms, or symptoms that persist after treatment for a presumed infection. These symptoms have many possible causes, but timely assessment can identify problems that need treatment.
- Seek urgent care for inability to urinate.
- Seek urgent care for heavy ongoing blood or clots in the urine.
- Seek urgent care for severe flank or pelvic pain.
- Seek same-day medical advice for fever with urinary symptoms.
- Seek urgent help for faintness or rapidly worsening symptoms.
Branches
1 topic
Bladder Cancer
Urology
