Confusion
A kidney infection can also make you confused and mentally fuzzy. Many studies have shown a direct association between brain fog and decreased kidney functions. Since these organs are responsible for filtering toxins and wastes, impaired kidneys caused by an infection would make these substances build up in your brain, thus resulting in mental changes. However, this is a very common and general health issue, so a health check by your doctor is necessary to rule out the cause. [6]
