Are brain tumors rare in a 23yo female?

Yes, that's rare.: Brain tumors are more common than some realize but they aren't especially common in people in their 20s, male or female. Most people in their 20s who have severe headaches suffer from migraine or another primary headache disorder. Epilepsy is another thing that can cause worry about a tumor, but usually there is none present. Why do you ask?

Brain Tumor in 23 yo: Brain tumors are pretty rare in 23 year olds, but the incidence of brain tumors is increasing lately due to cell phone use and holding the smart phones up to your head.