RESUMEN
Fhlebothrombosis and thrombophlebitis of the cerebral veins and sinuses develop relatively rare, but they affect young people and have poor prognosis. Pregnancy and puerperium are et risk due to hormonal and homeostatic changes in the organism. This report exhibits the most frequent etiologic factor, early symptoms, clinical manifestation, diagnostic value of the different methods, treatment principals and the factors that determine the outcome of thrombofphlebitis and phlebothrombosis during pregnancy and puerperium. In the acute phase a treatment with direct anticoagulants (intravenous heparin or low molecular mass heparins) and symptomatic treatment with anticonvulsants and drugs against oedema. After the acute phase the treatment continues with oral indirect anticoagulant as long as the severity of the disease requires.