A system includes a lead having a lead body and at least one electrode； and a retention feature disposed along the lead body proximal to the at least one electrode and configured to assist in atraumatically anchoring the lead to nearby tissue when the lead is positioned in the body. A system includes a lead having a lead body and at least one electrode； and a coiled retention feature disposed along the lead body proximal to the at least one electrode and configured to assist in anchoring the lead to nearby tissue when the lead is positioned in a body. A lead for stimulating a target neural tissue includes an elongate body； at least one electrode disposed along the elongate body； and a passive retention feature disposed along the lead body proximal to the at least one electrode and configured to assist in anchoring the elongate body to tissue near the target neural tissue.
