Smaller kidney cysts are usually not painful. Larger kidney cysts are likely to be painful and accompanied by other symptoms.
Smaller renal cysts do not compress the localized kidney, the parenchyma does not affect the function of the kidney, and they do not squeeze the local nerves and soft tissues, etc., and it is possible that they may not have any symptoms.
If the cyst gradually increases in size, it may pull the renal peritoneum or compress the kidney inwardly, resulting in abdominal pain on the affected side, back pain, mainly distension and pain, and possibly hematuria, proteinuria, abdominal mass and other symptoms.
Simply from the symptoms can not determine whether the renal cysts, you need to go to the hospital for further examination, to clarify the cause of the disease, and active treatment.