Dreaming of cysts is a negative sign as per dream meaning and interpretation. The dream means you will soon face some serious problems in life especially related to health. It also means you are allowing a problem to grow without solving them immediately.
Dream of cysts and you realize it is one your body means you should try to evaluate your relationships intellectually not emotionally. You should avoid carrying the emotional baggage of others.
Dreaming cysts in another person is a kind of warning about health issues. You should not ignore small health problems.
Dream of cysts in internal organs means unwanted fear and wrong information will cause of a scare in your life.