Cysts can occur in all tissues of the body, and those that are prone to cysts include liver cysts, kidney cysts, pancreatic cysts, spleen cysts, and breast cysts. The exact cause of liver cysts, kidney cysts, pancreatic cysts, and spleen cysts is not known. For relatively small cysts, no treatment is required, and they should be followed up regularly with close follow-up. If they cause local pressure symptoms, they can be cured by surgical local excision. If breast cysts appear, they are due to the occurrence of cystic hyperplasia of the breast because of the imbalance of estrogen and progesterone as well as lactogen in the body. Therefore, the main treatment is to relax, dredge the liver and regulate the qi, abstain from spicy, oily and stimulating foods, and if necessary, use Chinese medicines, such as prolotherapy pills, to bring the body’s hormone levels to a balanced state.