What is 9mm Cyst on Kidney

9mm cyst on kidney is a small fluid-filled sac located in the kidney. 9mm is very small in size and usually will not cause any discomforts or symptoms.

Cysts on kidneys are very common and its incidence will increase along with age. About half of those that are over their 50s will have at least one or several simple kidney cysts and the incidence is up to 90% among those that are over 70 years old.

The exact cause of cyst on kidney remains unclear and there has no consensus at present. Some think that it has the same cause as PKD, only they vary in degree and some think that it is due to aging.

Small cyst as 9mm have relatively slow growth rate and have little influence on kidney functions. It usually causes no symptoms and has little chance of cancerization. With continuous development of medical sciences and popularization and increased importance attached to physical examination, more and more people are found having cysts on their kidneys even when the cysts are very small in size.

Since 9mm cyst usually causes no symptom and damages to kidney structure and kidney functions, most doctors just adopt a wait and see attitude and prescribe no special treatments.

Even though, there are a lot of things that can be done to slow down the growth rate of the cyst and avoid potential injuries and impairments to kidney functions. Kidney cyst patients should avoid spicy and excitant foods such as hot pepper, alcoholic beverage, shrimp, crab, etc. Polluted foods (including left-over) and grilled foods such also be avoided. Besides, patients should limit the intake of salt and high-quality proteins to reduce burdens to kidneys. Fruits and vegetables that are rich in vitamins and fibers are conducive for kidney cyst patients.

In daily life, patients should have adequate rest and avoid over-tiredness, strenuous activities and physical traumas in the abdomen to avoid cyst rupture. Usually regular checks should be done every 6 months and avoid any medicines that have renal toxicity.