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Frequent urination and dehydration

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I'm a 37 year old woman and for last 3 moths I have been urinating every 1.5 hours. I keep getting dehydrated and feel sick . I have been to a Urologist and she had me on antibiotics for 6 weeks..did nothing..then on Vesicare, which was awful because it blurred by vision so bad I couldn't work. No blood in urine and no infections. On Monday I went 27 times in one day! Dr. seems to think it's "nothing". I feel like I need to go to the ER today because I'm so weak. Any suggestions??? I am getting mentally sick now as well as physically!!!!!

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replied April 17th, 2010
Urinary and Bladder Disorders Answer A11332
Welcome to the ehealthforum and I am really glad to help you out.

One of the commonest diseases causing frequent urination is diabetes mellitus as the body tries to get rid of extra sugar through urine which takes a lot of water (as sugar is an osmotically active molecule).

Hence, my suggestion is get the blood sugar & HbA1c test done.

Another possibility is diabetes inspidus in which the hormone which helps in reabsorption of water from the kidneys is produced in less amounts resulting in frequent urination.

This is tested by measuring the specific gravity of the urine. I sincerely hope this information helps. Take care.

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