Mae hymenoplasti yn llawdriniaeth a wneir i ail-greu’r hymen i sicrhau bod menyw yn gwaedu’r tro nesaf y mae’n cael rhyw i roi’r argraff nad oes ganddi hanes o ryw drwy’r wain.
Hymenoplasty is a procedure undertaken to reconstruct a hymen to ensure a woman bleeds the next time she has intercourse to give the impression that she has no history of vaginal intercourse.