Inborn disorders of haemocoagulation are among rare causes of cerebral infarctions. Comprehensive and causal examination of the hypercoagulation state in young subjects after cerebral ischaemia can reduce the group of unexplained cerebrovascular ischaemia can reduce the group of unexplained cerebrovascular attacks and prevent relapses by suitable prophylactic treatment. The authors submit the case-history of a 33-year-old female patient with secondary epileptic attacks caused by ischaemic cortical brain lesions with secondary haemorrhagic infarsation in the left temporooccipital region with an etiopathogenetic relationship with a hereditary combined coagulation disorder: deficiency of S protein, deficiency of C protein and resistance to activated C protein.

        Key words: cerebral infarction, hereditary thrombophil conditions