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Dr. Andrew Rynne
MD
Dr. Andrew Rynne

Family Physician

Exp 50 years

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What Causes Frequent Urination And Weakness In The Legs?

Although there is a very prevelent strain of diabetes in the family, for the last 2 years I have been borderline when taking a oral glucose tolerance test. I am drinking more and urinating within 20-30 mins of drinking even a small cup of liquid. I am also tired, 50 year old woman, hypertensive (controlled with medication and simavastatin). My knees seem weak, and it appears they give way at times when I stand up after sitting for about 1/2hr, I also feel very stiff from the pelvic area down to my knees.
posted on Fri, 14 Mar 2014
Twitter Sat, 26 Jul 2014 Answered on
Twitter Wed, 30 Jul 2014 Last reviewed on
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Internal Medicine Specialist,  's  Response
Hi
There are many causes of frequent urination . One simple cause in you could be excess intake of water for no reason ( its called Primary polydipsia).
Secondly recheck your blood sugars because uncontrolled diabetes can cause excess thirst and excess urine .
Third get serum potassium tested as low potassium can explain your excess urine and leg weakness.
Also one more condition called Diabetes insipidus can cause excess urine . I advise you to get urine osmolality tested.
You also mentioned you take some medicine for hypertension. Kindly mention which as some medicine can cause excess urination thirst and leg weakness.
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What Causes Frequent Urination And Weakness In The Legs?

Hi There are many causes of frequent urination . One simple cause in you could be excess intake of water for no reason ( its called Primary polydipsia). Secondly recheck your blood sugars because uncontrolled diabetes can cause excess thirst and excess urine . Third get serum potassium tested as low potassium can explain your excess urine and leg weakness. Also one more condition called Diabetes insipidus can cause excess urine . I advise you to get urine osmolality tested. You also mentioned you take some medicine for hypertension. Kindly mention which as some medicine can cause excess urination thirst and leg weakness.