Brain Tumor Symptoms Different parts of the brain control different functions so the brain tumor symptoms differ depending on the location of the tumor. The tumor’s size and how fast it is growing determines the symptoms one person is experiencing. Some general brain tumor symptoms that show the signs of brain tumor and might require the patient to undergo the brain tumor surgery may include- Brain tumor headaches, mostly in the morning Seizures/ fits Difficulty in thinking, speaking or finding words Vision changes Loss of hearing