Blood leaving the veins is the clinical manifestation of crush syndrome. Crush syndrome is a condition in which a person is buried by a stone and earth, especially a limb with rich muscles is crushed for more than one hour (such as thigh), and then causes a series of pathological changes in the body due to damage to the skin and flesh, blood leaving the vasculature, accumulation of blood stasis, stagnation of qi and blood, meridian occlusion, local pain, swelling of the limb, indentation and hardening of the skin, subcutaneous blood stasis, and increased skin tension. The diagnosis of extrusion syndrome is mainly based on medical history, clinical manifestations (local symptoms and systemic symptoms), and laboratory tests. The TCM evidence is divided into four types: stasis blocking the lower jiao, water-damp retention, deficiency of both qi and yin, and deficiency of qi and blood. Clinical classification can be divided into three levels. Deaths after a short period of time after crush injury are often due to traumatic hemorrhagic shock or hyperkalemia resulting in cardiac arrest; while deaths after several days are often due to crush injury resulting in renal failure or multi-organ failure, therefore, in forensic autopsy work if there is a high suspicion that the cause of death is crush syndrome must take the kidney, conduct pathological examination and confirm to prevent misdiagnosis. This condition does not need to be differentiated from other diseases. In patients with crush syndrome, dialysis therapy should be performed early once there is evidence of renal failure. This therapy can significantly reduce the death due to acute renal failure such as hyperkalemia. Hemodialysis (i.e., artificial kidney) can be done in hospitals where available. Peritoneal dialysis is simple to perform and also gives good results in most patients.