One of the most important structures of the human body is the bone structure, since it acts as a support and is the basis of the body’s mobility. In order for the bone system to work optimally, it is necessary that it maintains a good quality, which can be affected due to injuries or any pathology. One of the pathologies that can most affect the bone system is osteomyelitis, because it is an infection that weakens the bones causing serious consequences that can even lead to bone destruction. In the field of classical mechanics, the bone structure is studied to know its mechanical properties and biomechanical behavior in different circumstances, because there are several factors that can greatly modify such behavior such as bone size, age, gender, injuries, pathologies, etc. In the present work we intend to perform an analysis of the bone structure of the hip, formed by cortical and trabecular bone of the pelvis, cortical and trabecular bone of the femur, as well as the iliofemoral, ischiofemoral and pubofemoral ligaments, in which the comparison of a structure in clinically healthy conditions against one affected with osteomyelitis in the femur in an initial phase is made. Different analyses are performed with the help of the finite element method (FEM) to learn more about the biomechanical behavior of this structure with this pathology in order to identify the critical areas and to be able to implement a possible treatment for this infection before reaching a more advanced stage.