Lower Back Pain Associated with Bladder Infections - Urology

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Lower back pain associated with cystitis?


Hello Doctor, about two weeks ago I visited a urology clinic for a urinary tract infection and mentioned that I have lower back pain (on the right side near the hip).
I took antibiotics for three days and returned for a follow-up, where my urine test results were normal, but my lower back pain persisted.
I asked if it could be a kidney issue, but the doctor said that since the urine test showed no bacteria, it is not a kidney problem and that my posture might be causing the back pain.
I took a total of six days of antibiotics.
I'm not sure if working in a warmer environment is related, but I have been experiencing frequent dizziness and poor appetite lately.
I have been trying to drink plenty of water, but today I noticed that my urine had a slight amount of fine bubbles.
Could this indicate a kidney issue, and should I get further tests? I usually take medication for hyperthyroidism and traditional Chinese medicine, spaced an hour apart.
At that time, I took the antibiotics along with the hyperthyroidism medication.
Thank you for your guidance.

Niao Er, 30~39 year old female. Ask Date: 2018/08/07

Dr. Du Shixi reply Urology


Hello: Lower back pain in women can sometimes be related to gynecological issues.
If the urine test results are normal, it may be necessary to look for other causes.
Wishing you good health.
A urine test typically includes a comprehensive analysis, and any issues should have been detected in the previous urine examination.
You can retest if needed.

Reply Date: 2018/08/07

More Info


Lower back pain associated with bladder infections can be a complex issue, often influenced by various factors including posture, underlying medical conditions, and the effects of medications. In your case, it appears that you have been experiencing persistent lower back pain even after completing a course of antibiotics for a bladder infection. While your urine tests have come back normal, indicating that there is no ongoing infection, it is important to consider other potential causes for your symptoms.

Firstly, the location of your pain—near the lumbar spine and close to the hip—could suggest that the discomfort is not directly related to the bladder infection but rather to musculoskeletal issues. Poor posture, especially if you work in a setting that requires prolonged sitting or awkward positions, can lead to muscle strain and discomfort in the lower back. It is essential to evaluate your daily activities and work ergonomics to identify any habits that may contribute to your pain.

Additionally, the fact that you are experiencing dizziness and decreased appetite raises some concerns. These symptoms could be related to dehydration, especially if you are not consuming enough fluids, particularly in a warmer environment. Dehydration can lead to various systemic effects, including fatigue and dizziness. It is crucial to ensure that you are drinking adequate amounts of water, particularly if you are on medications that may have diuretic effects or if you are sweating more due to heat.

The presence of foamy urine can sometimes indicate proteinuria, which may suggest kidney issues, but it is not definitive on its own. Protein in the urine can be caused by a variety of factors, including dehydration, exercise, or more serious conditions such as kidney disease. Given your history of hyperthyroidism and the medications you are taking, it is advisable to monitor this symptom closely. If the foamy urine persists or if you develop other symptoms such as swelling, changes in urination patterns, or worsening back pain, it would be prudent to seek further evaluation from your healthcare provider.

In summary, while your urine tests indicate that your bladder infection has resolved, the ongoing lower back pain may be due to musculoskeletal issues rather than kidney problems. However, the additional symptoms of dizziness, decreased appetite, and foamy urine warrant further investigation. It is advisable to maintain good hydration, assess your posture and work habits, and consult your healthcare provider if your symptoms persist or worsen. Regular follow-ups and open communication with your healthcare team are essential to ensure that any underlying issues are addressed promptly.

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