本文主要讨论重伤和轻伤程度的鉴定时机以及与鉴定时机有关的问题。鉴定人体损伤的轻、重程度，只能以损伤当时原发性病变为主要依据，才能据以准确界定损伤程度，从而确定实施伤害的行为人是否构成犯罪以及犯罪的轻、重程度。至于与损伤有直接联系的并发症、损伤引起的后遗症 This article focuses on the timing of identification of serious injuries and minor injuries as well as issues related to timing of identification. Identification of human injury light and heavy degree, only to the primary cause of injury is the primary basis, in order to accurately define the extent of damage, in order to determine whether the perpetrator of the crime constitutes a crime and the severity of the crime. As for the complications that are directly related to the injury, the sequelae caused by the injury