I have a small cyst on my testicle, will it go away or will i have it for life?

Are you sure?: Did you ever see a doctor about this cyst? Depending on what/where/how big it is, it may or may not be something to get concerned about. If a doctor told you it was a cyst, there are procedures to remove it, but otherwise the cyst is harmless. However, it could indicate other more serious things - hernia, sexually-transmitted infection, etc, that will need treatment.

Need observation: Seminal cysts are out side the testes , need observation to make sure not tumors, and unlikely to go away on their own with out surgical removal.