The time maintained by fluid aspiration for liver cysts is generally based on the size of the cyst, their own condition and personal constitution, due to the large individual differences between patients, so it can not be generalized. 1. Smaller liver cysts: if the patient has smaller liver cysts, the therapeutic effect of puncture and fluid extraction is usually better. Anhydrous alcohol injected into the puncture can kill the secretory cells on the cyst wall, thus effectively controlling the condition. 2. Larger liver cysts: if the patient has larger liver cysts, the therapeutic effect of puncture and fluid extraction is usually poor, and the cyst wall may also secrete fluid, which may lead to the re-formation of cysts. Generally, according to the doctor’s guidance, you can consider choosing cyst opening surgery to achieve the therapeutic effect. The specific situation depends on the patient’s condition, and it is recommended that the patient undergoes the relevant treatment in the hospital according to the doctor’s guidance.