As with many brain tumors, the most common initial symptom of glioblastoma multiforme is headache. Since the symptoms are often caused by the pressure of a tumor against adjacent brain structures, the symptoms may vary depending on where in the brain or spine the tumor is located. Symptoms of GBM include:
Most people with headaches and nausea do not have brain tumors, of course, but anyone with neurological symptoms like those listed above should be evaluated by a physician. Suspected or confirmed brain tumors should be referred to a neurosurgeon for evaluation (see Doctors Who Treat Glioblastoma Multiforme).
Reviewed by: Rohan Ramakrishna, M.D.
Last reviewed/last updated: December 2020