Summary. Endometrial cancer is the most common gynecological cancer in developed countries. Biopsy of the sentinel lymph node can be considered as an alternative to full lymphadenectomy. In order to identify sentinel lymph nodes, a tracer substance is injected into the uterus to visualize the lymphatic tract. Commonly used tracer substances are Technetium-99m (99mTc) colloid, blue dyes, and indocyanine green (ICG). In this review the significance of sentinel lymph node biopsy in endometrial cancer management and the technique of the procedure is discussed.