This document discusses the management of endometrial hyperplasia. It defines endometrial hyperplasia and its most common presentations. It describes the classification of endometrial hyperplasia, including hyperplasia without atypia and atypical hyperplasia. It recommends treatment and follow-up depending on the classification, including medical treatment using progestogens, surgical management with hysterectomy, and endometrial surveillance. The risks and management are discussed for different patient populations, such as those with breast cancer undergoing adjuvant therapy.