Stab wounds to the chest in girls require different levels of surgical treatment depending on the severity of the condition. Chest stab wounds are knife stab wounds to the chest, depending on the injury site, the depth of the knife stab wound, the performance is different, the most common is to damage small blood vessels in the chest, muscle tissue, resulting in local bleeding, local hematomas, serious cases may damage lung tissue, large blood vessels in the chest, the heart, etc., resulting in pneumothorax, hemopneumothorax, hemorrhagic shock or even hemorrhage leading to death. When the depth of knife stab wounds is not deep, without damage to lung tissue and large blood vessels, can be promptly clean suture, bleeding bandage, and the need for tetanus, postoperative wound dressing and anti-infection treatment. When the depth of the knife stab wound is deeper, damage to the lungs or large blood vessels, it is necessary to carry out emergency open-heart exploratory surgery, repair the wound and blood vessels, stop bleeding in a timely manner, and carry out post-operative anti-shock and anti-infection treatment. When a knife stab wound to the heart, the disease tends to progress more rapidly and may be life-threatening, often with no time for resuscitative treatment. Knife stab wounds in the chest is a critical condition, it is recommended to call 120, timely medical treatment.