The pathology of the foot is frequent in the inflammatory rheumatisms. It can finally contribute to the diagnosis. In rheumatoid arthritis, the metatarso-phalangeal joint involvement appears earlier and more obvious. The lesion of the midrearfoot is later and the beginning is more indisious, they often evolve in pes plano valgus deformity. In spondylarthropathies the involvement of the heel and of the toes predominates, but there are more specific symptoms for each disease particularly for the psoriasic rheumatism. Local cares, plantar orthoses, casts, corticosteroid injections, synoviortheses as well as a good hygiene of life are very useful. Surgery helps to keep the functional ability of the patient and its indications must be known.