Haemorrhage is most important sequelae of brain cavernoma, so the surgical treatment is very important for treatment that complication. There are two types of bleeding - chronic subclinical microhaemorrhage and acute real hemorrhage. Patophisiologycal factors which are reasponsible for bleeding are not still understanding. The reason for this study is understanding of clinical curse of cavernomas and identification of factors of influence. This is retrospective and prospective study. We analyzed 36 patients with symptomatic brain cavernoma, surgically treated in Institute of neurosurgery KCS in 10 years period (1987-1997). Female were dominant but without statistical significance (p>0,05). Male patients were older (32,1:29,8), but without statistical significance (p>0,05). Almost 75% lesions were supratentorial, 25% infratentorial (p<0,05). Focal neurological deficit (FND) was dominant clinical presentation in 52,8%. FND was dominant in 52,6% female, but without statistical singnificans (p>0,05). Clinical presentation according the age was not statistically significant (p>0,05). Clinical presentation was very different according the size of lesion (p<0,001). FND as a sign of bleeding was in 57,9% supratentorial cavernomas and in 42,1% infratentorial (p<0,005). More than 1/3 patients have recurrent bleeding with 21 attack of haemorrhage or almost 2 attack per patient. We find that dominant predictive factors for recurrent haemorrhages are localization and size of lesion.