Overview A kidney cyst is a fluid-filled sac on or in your kidney. They can be small or large and you can have more than one. Most are harmless and not cancer.

Jul 13, 2022 · Kidney cysts can occur with disorders that may impair kidney function. But more often, kidney cysts are a type called simple kidney cysts. Simple kidney cysts aren't cancer …

Apr 17, 2025 · Discover what size of kidney cyst is dangerous, which ones need follow-up, and what signs may suggest a risk of complications.

Dec 7, 2024 · Simple cysts are the most common type of kidney cyst, and they most often are benign. Simple kidney cysts aren’t related to polycystic kidney disease (PKD). PKD runs in …

Kidney cysts are fluid-filled sacs that can develop in one or both kidneys. Most kidney cysts are benign and cause no symptoms, but understanding their size and potential risks is essential …

Most kidney cysts do not cause symptoms and are found during scans for other medical reasons. However, if a cyst becomes large, it may cause back or side pain, blood in the urine, or high …

Jun 19, 2025 · Kidney cysts are fluid-filled sacs that develop within the renal parenchyma, typically containing clear, straw-colored liquid similar to urine. These formations occur when …

Aug 7, 2025 · Simple kidney cysts rarely cause problems and are different from polycystic kidney disease, which tends to run in families and can be more serious. In most cases, simple kidney …

For example, a person with polycystic kidney disease develops a large number of kidney cysts. (The cysts may be simple or complex.) Too many cysts can prevent the kidney from working …

Jul 1, 2025 · Kidney cysts are fluid-filled sacs that develop in or on the kidneys. While many are benign and asymptomatic, some can lead to complications depending on their type, size, and …