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Simple kidney cysts typically don't cause symptoms. But if a simple kidney cyst grows large enough, symptoms may include: Dull pain in the back or side; Fever; Upper stomach pain; When to see a doctor. Make an appointment with your health care provider if you have symptoms of a kidney cyst. Causes. It's not clear what causes simple kidney cysts.
Kidney cysts can range in size, although most tend to be less than 2 inches wide. They can also grow over time or stay about the same size. Some people may have several cysts, while others have just one. You can have one or more cysts in one or both kidneys.
By age 40, about 25 percent of people will have them. By age 50, about 50 percent of people will have kidney cysts. Men are at greater risk than women of developing kidney cysts. PKD is an...
Most of the time, they are simple kidney cysts, meaning they have a thin wall and only water-like fluid inside. They are fairly common in older people and typically do not cause any symptoms or harm. In rare cases, renal cysts may require treatment due to infection, bleeding, or enlargement.
And almost half of all people aged 50 or older have one or more simple cysts in their kidneys. The size of these cysts may also increase with age and may double over 10 years.
Cystic kidney disease causes pockets of clear, watery fluid (cysts) to form in the kidneys, making it harder for your kidneys to work properly. Cystic kidney diseases include: polycystic kidney disease (PKD) which is the most common inherited form, medullary cystic kidney disease, and medullary sponge kidney.
There is no specific size of kidney cyst that makes it dangerous. However, a doctor can classify a kidney cyst based on the Bosniak scale. A higher number on the Bosniak scale is linked with...