The biological effects of shockwave therapy are permanent and have been scientifically proven. However, erectile dysfunction can be caused by a number of factors and those factors will determine if and when the condition can reoccur. Lifestyle factors or underlying health conditions could cause the problem to resurface in time if they are not resolved. That is why we also give guidance on how to address these factors in the long term to promote better and longer lasting results. Results cannot be guaranteed and may vary from individual to individual but 70-80+% of patients do see positive results.