Split cysts are arytenoid epiglottic fold cysts that are located on the inner upper edge of the inlet of the pyriform fossa, and the decision of whether there is any harm to the body is usually based on the size of the cyst. If the cyst is too large, a series of symptoms such as a foreign body sensation in the throat, difficulty swallowing, and dyspnea may occur. Cleft cysts should first be considered benign lesions, and if the cyst is small, the patient may not experience any special discomfort. Some patients find it unintentionally when doing electronic laryngoscopy. This situation can also be treated without special treatment, and close observation is sufficient. If the cyst is larger, the patient may experience a foreign body sensation in the throat and difficulty in swallowing. In severe cases, it may even feel difficult to breathe. If the cyst is combined with infection, it may also be accompanied by pain and discomfort in the throat, and the condition will worsen in the short term. If the cyst is large and has obvious clinical symptoms, surgical removal can be considered. If a cleft cyst is found, it is recommended to go to the hospital as soon as possible and take appropriate treatment measures according to the size of the cyst and clinical symptoms.