Inclusion Criteria:  ≥18 years-old Goligher's grade III haemorrhoidal disease indication to elective Doppler-guided or non-Doppler guided HAL surgery associated with mucopexy or Milligan-Morgan hemorrhoidectomy.  Exclusion Criteria:  Recurrent disease bleeding disorders chronic inflammatory bowel diseases vasculopathies combined surgical techniques (HAL with mucopexy and removal of one or more haemorrhoidal nodules)