The need to treat a cyst in the chest depends on the situation. If the cyst is large and causes compression symptoms, surgical removal may be performed as soon as possible; if the cyst is small and there are no other symptoms, observation may be considered for the time being. A chest cyst is a sac-like structure in the chest that has an outer wall and contains fluid or other components. When a chest cyst is too large and causes symptoms of lung tissue compression, leading to breathing difficulties, etc., it should be treated in a timely manner, and surgical removal is the preferred treatment. If a chest cyst is found to be growing too fast, there may be a risk of malignant changes and timely surgery should also be performed. If a cyst is found in the chest by accidental physical examination and there are no obvious clinical symptoms, it can be temporarily observed and followed up with regular review. If a cyst is found in the chest, one should consult a regular hospital in time and choose a reasonable treatment under the doctor’s advice; at the same time, one should pay attention to a regular life and avoid exertion in normal life.