Subarachnoid hemorrhage does not cause loss of smell in most cases, but may occur in a few patients.
Subarachnoid hemorrhage occurs when blood flows into the subarachnoid space after rupture of a blood vessel in the skull. The clinical manifestations of this disease vary widely, and for those with symptoms, they usually include headache, meningeal irritation, eye symptoms, and psychiatric symptoms. For example, a small amount of hemorrhage may be accompanied by a headache prior to the onset of the disease, and neck tonus and ocular motility disorders may occur a few hours after the onset of the disease.
If subarachnoid hemorrhage is caused by vascular malformation, rupture of intracranial aneurysm, etc., there may be limited neurological impairment, such as damage to the olfactory bulb, olfactory filaments, or central nervous system connections, causing loss of the sense of smell.
Subarachnoid hemorrhage should be treated immediately to minimize the adverse effects of the disease.