Treatment with oral progestogens or the LNG-IUS should be for a minimum of 6 months in order to
induce histological regression of endometrial hyperplasia without atypia.
If adverse effects are tolerable and fertility is not desired, women should be encouraged to retain the
LNG-IUS for up to 5 years as this reduces the risk of relapse, especially if it alleviates abnormal uterine bleeding symptoms.

• Treatment with oral progestogens or the LNG-IUS should be for a minimum of 6 months in order to
  induce histological regression of endometrial hyperplasia without atypia.
  - Endometrial surveillance incorporating outpatient endometrial biopsy is recommended after a diagnosis of hyperplasia without atypia.
  - Endometrial surveillance should be arranged at a minimum of 6-monthly intervals.
  - At least two consecutive 6-monthly negative biopsies should be obtained prior to discharge.