Feet problems are a very often reason for searching medical advice: one out every people after 65 years of age have foot problems. Conservative medical treatment associated with insoles, braces and special shoes is a very important part of treatment. Patient with foot problem could have just a simple conflict due to too narrow shoes or be as severe as an destructive diabetic arthropathy. After reminding the great groups of pathologies, causes and effects, we describe successively effects, kinds indication and fabrication of foot orthosis and shoes. Prevention of complications is a very important tool in treating feet problems. Every patient with a foot orthosis should have a very good footwear. The interdisciplinary approach with orthesist is mandatory, as is the precise and meticulous follow-up of this patient.