The life expectancy of 30-year-old kidney cysts is usually not very short, and patients can take surgical treatment in time to control the development of the disease and improve the prognosis. Kidney cyst is a common structural disease of the kidney, can occur in unilateral or bilateral kidneys, if the condition is mild, usually no obvious discomfort symptoms. With the development of the disease, the cysts gradually become larger and can compress the surrounding tissues, resulting in lower back pain, hematuria, abdominal mass and proteinuria. Generally, kidney cysts have a better prognosis and will not affect their life expectancy. Once diagnosed with kidney cyst, patients can take treatment measures according to their own situation. If the cyst is small, there is no need to take special treatment and regular follow-up is enough; if the cyst is large, kidney cystectomy, kidney cyst puncture treatment can be taken. The disease can be treated to relieve the symptoms of the disease and improve the prognosis. When 30-year-old patients are diagnosed with renal cysts, they need to actively cooperate with doctors to take relevant treatment measures to avoid delaying the condition. At the same time, they need to maintain a relaxed and happy mood to avoid a negative mindset.