Faced with the pressure of work in today’s society, we have good health to be able to work and live better. However, most people do not pay much attention to their bodies and hold an indifferent attitude towards some less serious pains, but it is these small pains that can sometimes bring us serious diseases. When we have intermittent or persistent pain in the femur, inner thigh, posterior hip and medial knee, we should be aware that these symptoms are early signs of dead bone. It is important to pay attention to this disease and to understand the causes of this disease so that we can detect and treat it in time. There are several reasons for the formation of dead bone: 1. The main reason for the formation of dead bone is the interruption of blood supply. Histologically it is the death and disappearance of bone cells and liquefaction and atrophy of bone marrow. 2. Necrosis of the bone due to loss of blood nutrients as a result of disruption of the blood circulation supplying the femoral head. Its occurrence is related to trauma to the marrow, herbal treatment to open microcirculation and meridians to promote necrotic bone resorption, bone bad repair, and application of static therapy to help restore function to promote resorption.