Cerebral cavernous malformations (CCM) often present as seizures, intracranial hemorrhage, focal neurological deficits, and can also be found accidentally in brain magnetic resonance imaging (MRI). Although microsurgery or stereotactic radiosurgery can be used to reduce the risk of new intracranial hemorrhage, surgical treatment may lead to serious adverse events, so most patients choose medical treatment. Because of this, drug therapy has been a hot spot in CCM research. HMG-CoA reductase inhibitors (statins) and beta-blockers have been shown in previous animal experiments and retrospective studies to inhibit the progression of CCM and reduce the risk of bleeding. The aim of this study was to explore the association between the use of beta-blockers or statins and the risk of new intracranial hemorrhage or persistent/progressive focal neurological deficit in adult patients with CCM in a prospective cohort study based on the CCM population.