What is a Benign Kidney Cyst?

Health Nucleus clients enroll presumed to be healthy, but some are found through our integrated assessments to have asymptomatic or pre-symptomatic health concerns, which now detected, can be treated through standard medical care. Benign Kidney Cyst is one example.

What is a simple kidney cyst?

A kidney cyst is a benign fluid filled sac that develops in the kidney(s). They are the most common kidney mass, and someone may have one or multiple cyst(s) in one or both kidneys.

Why do kidney cysts develop?

Kidney cysts can occur in genetic and nongenetic conditions. The exact cause is not always known.

What are possible symptoms?

Most simple kidney cysts will not cause signs or symptoms.

Who is likely to develop kidney cysts?

  1. People over the age of 50
  2. Men are at a higher risk
  3. People with certain genetic conditions such as:
    1. Autosomal dominant polycystic kidney disease
    2. Von Hippel-Lindau disease
    3. Tuberous sclerosis complex
    4. Nephronophthisis
  4. People certain medical conditions such as: End stage renal disease

What are potential complications?

  1. The majority of simple kidney cysts will not have complications.
  2. In rare cases someone may experience infection, high blood pressure or bleeding related to the cyst.
  3. If you experience blood in your urine, fever, abdominal/back pain please consult your primary care provider.

What are possible treatments?

  1. Treatment is typically not needed for simple kidney cysts, if rare complications occur then therapy is aimed to treat the complication or symptoms (i.e., infections, high blood pressure, pain, bleeding).

Where can I get more information?

For additional information, please seek further guidance from your primary care provider or nephrologist.


Kruskal, J. B., & Richie, J. P. (2017). Simple and complex renal cysts in adults. In R. D. Perrona & A. M. Sheridn (Eds.), UptoDate.