After this battle, Yuan Shu had suffered a great blow to his vital energy. It wasn't that he had lost many soldiers, but rather because his son, Yuan Yao, got overly excited during the battle. While charging into the enemy ranks, he got injured. After Du Xi diverted the Yuh River, flooding Yuan Shu's position, Yuan Yao didn't escape quickly enough. His wound came in contact with the water, and since then, he has been suffering from a continuous fever.
Yuan Yao was Yuan Shu's only son. Between his son being in such a condition and the considerable losses of his forces, Yuan Shu lost any interest in continuing his fierce struggle with Cao Ren. So, he ordered his troops to retreat to Shouchun. Along the way, they fed his son all sorts of tonics like ginseng and lingzhi mushrooms, and even stopped at a Taoist temple to make donations for him, but Yuan Yao's condition showed no signs of improving...