Right lung cysts are cystic lesions containing gas or liquid gas of varying sizes in the right lung and can be categorized into congenital and acquired. Congenital right lung cysts are mostly caused by congenital developmental defects, while acquired right lung cysts are mostly caused by secondary causes, such as cysts caused by lung infections, or cysts caused by parasitic diseases. Generally speaking, if the cyst is not serious, the patient does not have any symptoms and can go to the hospital for regular checkups; however, if it is a huge cyst complicated by infection, the patient may have fever, cough and hemoptysis, etc. If the cyst continues to increase in size, it may also affect the lung function and cause severe respiratory difficulties, so it is necessary to consult the doctor in a timely manner to carry out targeted treatments, and if necessary, it is necessary to consider surgery. It is recommended that patients seek timely diagnosis and symptomatic treatment to avoid delays.