Bladder Infection: Antibiotics and Cloudy Urine Explained - Urology

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Antibiotics for cystitis can cause cloudy urine?


On June 19, I was diagnosed with cystitis, and a urinalysis showed an elevated white blood cell count.
I was prescribed antibiotics, and in the past few days, I have been experiencing frequent urination.
Is this normal? Could the antibiotics be causing my urine to appear cloudy? Since I need to take the antibiotics for a week, should I return for a follow-up appointment regarding these concerns? Thank you for your assistance, doctor.

Niming, 40~49 year old female. Ask Date: 2017/06/21

Dr. Du Shixi reply Urology


Hello: 1) Frequent urination is one of the symptoms of cystitis.
2) Cloudy urine is also a symptom of cystitis, not a result of medication.
3) It is important to drink plenty of water, avoid spicy foods, and refrain from alcohol.
If symptoms improve within 2-3 days of taking medication, you can continue the medication for a week.
If improvement occurs only after 4-5 days, you should return for a follow-up examination.
If this situation occurs frequently, you should also schedule a follow-up appointment.
Wishing you good health.

Reply Date: 2017/06/21

More Info


Bladder infections, commonly known as urinary tract infections (UTIs), can be quite uncomfortable and are often characterized by symptoms such as frequent urination, urgency, and sometimes cloudy or foul-smelling urine. The presence of white blood cells in your urine, as indicated by your test results, suggests that your body is responding to an infection, which is a normal immune response.

When you are prescribed antibiotics for a bladder infection, it is essential to complete the entire course, even if your symptoms begin to improve before finishing the medication. This is crucial to ensure that the infection is fully eradicated and to prevent the development of antibiotic resistance. Antibiotics work by targeting and killing the bacteria causing the infection, but they can also affect the balance of bacteria in your body, leading to side effects.

Regarding your question about experiencing frequent urination while on antibiotics, this can be a normal symptom of a bladder infection. As the antibiotics begin to work, you may notice a reduction in the infection's severity, but your bladder may still be irritated, leading to ongoing symptoms like urgency and frequency. It is also possible for antibiotics to cause changes in urine color and clarity. Some antibiotics can lead to cloudy urine due to the presence of dead bacteria, white blood cells, or other substances being flushed out of your system.

If your urine appears cloudy, it may not necessarily be a cause for concern, especially if it is accompanied by other symptoms of infection. However, if you notice any significant changes, such as blood in your urine, severe pain, or if your symptoms worsen instead of improving, it is essential to follow up with your healthcare provider. They may want to perform additional tests to ensure that the infection is responding to treatment and to rule out any complications.

In summary, while experiencing frequent urination and cloudy urine during antibiotic treatment for a bladder infection can be normal, it is crucial to monitor your symptoms closely. If you have any concerns or if your symptoms do not improve after completing the antibiotic course, do not hesitate to reach out to your healthcare provider for further evaluation. They can provide guidance on whether additional treatment or testing is necessary. Remember, maintaining hydration and following your doctor's instructions regarding medication is key to a successful recovery from a bladder infection.

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