Cysts appear in many sizes, from small enough to require a microscope for viewing to large enough to displace organs, explains MedicineNet. Since attempting to burst a cyst on one's own can sometimes worsen the problem, cysts are best evaluated and treated by a doctor.
While many cysts are harmless and can be left untreated, larger ones may require treatment due to the potential for blocking ducts or compressing healthy tissue, according to MedicineNet. Available treatments for cysts include aspiration or surgery, especially when any concern of malignancy is present. While the development of most cysts is not preventable, those that appear in connection with infections may sometimes be prevented.