The shape and size of osteophytes were studied in different parts of the head of femur (mediodistal, proximal and lateral, central). There was not found any dependence of osteophytes on the basic disease of joint which produced arthrosis. Osteophytes developed from the subchondral cortical lamella, most often at the margin of the joint cartilage. Original corticalis and joint cartilage persisted nearly always at least in remnants under mediodistal osteophyte. On the other hand, original corticalis and cartilage were found under proximal and lateral osteophytes rather exceptionally.