Subarachnoid haemorrhage of spinal canal is a rare disease and is the 1.5% of all bleeding into the subarachnoid space. In most cases its occurrence is associated with a well-defined etiologic factors, and only in 15% of cases the cause remains unknown. The exceptions are the coexistence of subarachnoid haemorrhage with another type of haemorrhage to the spinal canal. This paper describes the case of 35-year-old woman who has sudden severe headache preceded by a sudden pain in the back area and numbness of left upper limb. MRI revealed bleeding in the subarachnoid space associated with subdural bleeding in the cervical and thoracic spinal canal probably due vascular malformation of the chest. In the absence of symptoms of neurological deficit patient was treated conservatively with good results. The case demonstrates that in selected patients with concomitant haemorrhage of subarachnoid and subdural spinal canal is not necessary neurosurgery. Thus, neurological status should be the most important criterion for the further management of patients with bleeding into the spinal canal.