This will be determined according to the presence of adverse events, which will be analyzed upon completion of each therapy and after 1, 3 and 6 months (control months). This variable will be dichotomous, as the presence or absence of adverse events. It is important to emphasize that no adverse events have been reported to-date by any clinical trial of patients with ED who have been treated with Li-ESWT (12, 14, 19, 29).