What are the most common causes of dry mouth and frequent urination?

One of the most common causes of dry mouth and frequent urination is diabetes. Diuretics, such as caffeine and alcohol, which dehydrate the body and remove fluid from the system, are another common cause. Frequent urination can also be an indirect cause of dry mouth, as many medications prescribed for overactive bladders cause dry mouth.

Type 1 and type 2 diabetes cause both symptoms. In fact, those symptoms are often the first and most noticeable signs of diabetes. Frequent urination is the result of low insulin levels that cannot properly break down glucose in the bloodstream. Normally, insulin levels break down glucose and convert it into energy. When levels are too low to do the job, the bloodstream is flooded with glucose, forcing more water and fluid into the bloodstream. As a result, more fluid is passed through the kidneys, causing diabetics to urinate more frequently. Another side effect of this process is thirst and dry mouth. People who chronically experience these symptoms should see a medical professional.

Diuretics cause the body to remove water and fluids from the system when you urinate. This naturally leads to dry mouth and frequent urination. People experiencing these symptoms who do not have diabetes should evaluate their intake of caffeine and alcohol, as both are diuretics that dehydrate the body. There are also diuretics in the food arena, such as cranberries, which can increase urination and cause dry mouth. Water pills, which are often taken for weight loss, also cause the body to get rid of water. Relieving symptoms can be as simple as eliminating diuretic substances from the diet.

Interestingly, medications that treat overactive bladders (bladders that send signals to the brain that cause urination even when the bladder is not full) cause dry mouth in many people. In this case, dry mouth and frequent urination do not occur at the same time. Instead, dry mouth is a side effect of efforts to cure frequent urination. Fortunately, dry mouth caused by medications can be relieved. Surprisingly, drinking more water won't necessarily cure the problem, but there are over-the-counter medications that can help. Chewing sugar-free gum can be another very effective way to increase the flow of saliva in your mouth. Sugar-free sweets can also help in the same way.

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