Symptom 13. Sleep Disturbances: A Challenging Symptom of Polycystic Kidney Disease
Sleep disturbances are another surprising manifestation of Polycystic Kidney Disease. Sleep is supposed to be a restorative process, a time when the body heals and rejuvenates. But for individuals with PKD, it can become a challenging ordeal marked by interrupted sleep and daytime fatigue.
One cause of sleep disturbances in PKD is nocturia, or night-time urination. The impaired kidneys are unable to concentrate urine, leading to larger volumes of urine that, in turn, necessitate frequent trips to the restroom. This symptom can be particularly disruptive at night, fragmenting sleep and leading to daytime fatigue.
Restless leg syndrome (RLS), a condition characterized by an overwhelming urge to move the legs, is another cause of sleep disturbances in PKD. While the exact link between PKD and RLS is not fully understood, it’s thought that the accumulation of waste products in the blood can stimulate nerve endings, causing the uncomfortable sensations associated with RLS.
Another factor contributing to poor sleep in PKD is the physical discomfort associated with the disease. The enlarged kidneys can cause abdominal discomfort, making it hard to find a comfortable sleeping position. Similarly, symptoms like joint pain and skin itching can make it difficult to fall asleep or stay asleep.
Sleep disturbances in PKD might seem like a minor inconvenience, but they can significantly impact the overall well-being of affected individuals. A lack of restorative sleep can exacerbate fatigue, affect mood, and hamper cognitive function. It’s yet another example of how PKD affects not just the kidneys but the entire body, impacting even the seemingly unrelated process of sleep. (13)
