A mass or collection of aberrant brain cells is known as a brain tumor. Your brain is housed inside of a highly stiff skull. Any growth within such a constrained area can lead to issues. Malignant (cancerous) or benign (non-cancerous) brain tumors are both possible. The pressure inside your skull may rise as benign or cancerous tumors enlarge. This has the potential to be fatal and can result in brain damage. Primary or secondary brain tumors fall into one of two categories: Your brain is where an initial brain tumor develops. Primary brain tumors are frequently benign. A secondary brain tumor, often referred to as a metastatic brain tumor, develops when cancer cells migrate from another organ, such as your lung or breast, to your brain. Although benign brain tumors can lead to a number of major problems, they are not cancerous, which means that they develop slowly and frequently do not spread to other regions. Additionally, they typically don't grow back after removal and typically have more distinct borders, making them easier to remove surgically. On the other hand, malignant brain tumors are cancerous, develop quickly, and have the potential to migrate to other regions of the brain or central nervous system, which can result in consequences that can be fatal. Your brain is the site of primary brain tumors. They are able to create a trusted source from your: nerve cells brain cells the meninges, which are the membranes that surround your brain, pituitary glands, and pineal glands. Both benign and malignant primary tumors are possible. Gliomas and meningiomas are the two forms of brain tumors that affect people most frequently.