I am 45, female, with an overactive bladder. Am I at risk?

Question

Hello doctor,

I am a 45-year-old woman struggling with sudden, intense urges to urinate that sometimes lead to accidents before I can reach the bathroom. My urinalysis came back normal with no infection, but my post-void residual showed that I am retaining 150 mL of urine after emptying my bladder. I am waking up three to four times every night to use the bathroom, which is affecting my sleep and energy levels. My urodynamic study confirmed detrusor overactivity, and my bladder diary shows that I am urinating twelve to fifteen times daily. Could this overactive bladder lead to kidney problems from retained urine, and am I at risk of developing recurrent UTIs or bladder stones?

Kindly advise.

Answer 1

Hello,

Welcome to icliniq.com.

I understand your concern.

I understand how stressful and exhausting these symptoms can be, especially when they interrupt your sleep and daily routine. Based on your history, you exhibit classic features of an overactive bladder (OAB) with detrusor muscle overactivity.

Your post-void residual (PVR) is 150 millilitres (ml), which indicates mild to moderate retention. This amount is not high enough to cause kidney damage. Kidney problems usually occur only when the post-void residual is higher than 300 to 400 ml, due to increased back pressure on the kidneys. For now, monitoring it every few months is sufficient, and there is no immediate cause for concern.

Yes, retained urine can act as a medium for bacterial growth, and frequent voiding can sometimes irritate the bladder lining. This does put you at a mild risk of urinary tract infections (UTIs), but it is not considered a high-risk situation. The risk of developing bladder stones is generally low in your case. Bladder stones usually form when the bladder does not empty properly for a long time, leaving large volumes of stagnant urine that allow minerals to crystallize. This typically occurs in patients with very high post-void residual volumes or long-standing obstruction. Since your residual urine volume is only moderately elevated, it is not high enough to cause stone formation.

Your test results show only mild retention, which is not enough to harm your kidneys or cause major complications.

With the right treatment and lifestyle modifications, such as:

Bladder training.
Pelvic floor physiotherapy.
Anticholinergic medicines such as Oxybutynin or Tolterodine.

You can experience significant improvement in urgency, nighttime urination, and bladder control. This condition is very manageable, and with consistent care, your symptoms can improve.

I hope you are satisfied with my answer. For further queries, you can consult me at iCliniq.

Thank you.