徒手伤是指用手、足、头等对人体组织所造成的损伤,常见的作用方式为拳击、掌击、手指掐压、足踢、牙咬、头撞及肘顶等。徒手伤轻者可致表皮剥脱、皮下出血和浅表的挫裂创,重者可致骨折、内脏破裂,甚至死亡。在法医学活体检查中,徒手伤所占比重极大。由于行为人对被害人致伤部位、作用力大小和方位的不同,徒手伤除典型的新月形表皮剥脱及 Accidental hand injury refers to the hand, foot, first class damage caused by human tissue, the common mode of action for boxing, hand-held, pinch pressure, kick, teeth bite, head hit and elbow and so on. Light hand injuries can cause epidermal exfoliation, subcutaneous hemorrhage and superficial setbacks, severe cases can cause fractures, visceral rupture, and even death. In forensic biopsy, hand injuries account for a large proportion. Due to the perpetrator of the injured site, the size and orientation of the different forces, hand injuries in addition to a typical crescent-shaped exfoliation and