23 strange signs that your kidneys might have problems
More frequent urination at night...
editor
Published on October 9, 2026

More frequent urination at night
Some people with kidney problems notice that they have to get up repeatedly at night to urinate.
However, frequent urination at night can also have the following causes:
Diabetes Prostate enlargement Medications Sleep disorders Drinking large amounts of fluids before going to bed 8. Urinating less than usual
Certain forms of kidney damage can lead to a significant reduction in urine output.
This is particularly worrying if it occurs suddenly and is accompanied by swelling, nausea, weakness, or a serious illness.
Dark urine can be caused by dehydration, food, medication, blood, or other medical problems.
Persistently or unexplained dark urine should be investigated, especially if it occurs along with jaundice, pain, or changes in urination.
Advanced kidney disease can affect the mineral balance and lead to the accumulation of certain substances in the body.
This can contribute to persistent itching.
However, itching is extremely common and can also be caused by dry skin, allergies, liver disease, medication, or skin conditions.
Dry, rough or flaky skin can sometimes occur as a side effect of kidney disease, especially when the mineral and fluid balance is disturbed.
However, dry skin alone is much more likely to have another cause.
Kidney problems can affect the electrolyte balance, which can contribute to muscle cramps.
Possible factors include changes in the following areas:
Calcium Phosphor Sodium Potassium
Exercise, dehydration, and medication can also cause cramps.
Some people with chronic kidney disease experience unpleasant sensations in their legs and an urge to move, especially at night.
This could be related to restless legs syndrome, which can also occur in people without kidney disease.
14. A metallic taste in the mouth
In cases of severely impaired kidney function, waste products can accumulate in the blood and impair the sense of taste.
metallic taste altered taste of food reduced enjoyment of meals
Dental problems, medications, infections, and other illnesses can cause similar changes.
Advanced kidney dysfunction can sometimes change the smell of breath.
However, bad breath is much more often caused by:
Dental problems gum disease dry mouth Sinus problems certain foods
It should not be considered the sole indicator of kidney disease.
People with advanced kidney disease may experience a decrease in their interest in food.
nausea Changes in taste general malaise accumulation of metabolic products
Persistent loss of appetite should be examined by a doctor.
Severely impaired kidney function can lead to nausea and vomiting.
These symptoms also occur in many other diseases and are therefore particularly worrying when accompanied by other signs such as swelling, significant changes in urination, or severe weakness.
Weight loss without any effort on one’s part
This can occur when appetite decreases or chronic illnesses affect nutrition.
Since unexplained weight loss can have many possible causes, it should be medically investigated if the loss persists.
Shortness of breath can sometimes occur in kidney disease for the following reasons:
anemia Fluid accumulation associated heart problems
Newly occurring or worsening shortness of breath should never be classified as kidney disease without appropriate examination.
Sleep disorders are common in people with chronic kidney disease.
Possible contributors include:
itching restless legs cramps Atemprobleme malaise
However, insomnia itself is extremely common and nonspecific.
Anemia associated with chronic kidney disease can sometimes cause those affected to feel unusually cold, even when others feel fine.
23 strange signs that your kidneys might have problems
By editor • Published in Healthy
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