Only steps outside of the hospital ward, Hermione came face to face with her son's attacker. Clearly whatever injuries that Julia Lestrange endured were not very serious as she was out and moving around. When the young witch saw the mother of her victim, she tried to side-step her, but Hermione was too fast. She wanted to look the horrible girl in the face to impose upon her the seriousness of her actions. She did not want her as an enemy.