Bladder cancer itself may not directly cause urinary incontinence in all cases, but certain treatments for bladder cancer can contribute to urinary incontinence. The bladder is a muscular organ that stores and releases urine, and disruptions to its normal function, whether due to cancer or its treatment, can affect urinary control.

Surgery, radiation therapy, and certain medications used in the treatment of bladder cancer can impact the normal functioning of the bladder and its surrounding structures. For example:

1. **Surgery:** Removal of a part or all of the bladder (cystectomy) can lead to changes in urinary function. Surgeons may create a urinary diversion, such as an ileal conduit or neobladder, to redirect urine flow. These changes can sometimes result in urinary incontinence.

2. **Radiation Therapy:** Radiation can cause irritation and inflammation of the bladder and surrounding tissues, leading to urinary symptoms such as urgency, frequency, and incontinence.

3. **Medications:** Some medications used in the treatment of bladder cancer may have side effects that affect bladder function. For instance, certain chemotherapy drugs may cause irritation of the bladder lining, leading to incontinence.

It's important to note that not everyone undergoing bladder cancer treatment will experience urinary incontinence, and the severity of symptoms can vary. Additionally, there are often interventions and strategies to manage and improve urinary function after bladder cancer treatment.

If someone is experiencing urinary incontinence or other urinary symptoms during or after bladder cancer treatment, it is crucial to communicate these issues with their healthcare team. Healthcare professionals can provide guidance on managing symptoms and improving quality of life. They may also recommend pelvic floor exercises, behavioral therapies, or other interventions to address urinary incontinence.