Neurofibromatosis is a genetic disorder that causes tumors to grow on nerves throughout the body. These tumors, called neurofibromas, are usually benign, meaning they are not cancerous, but they can cause pain, discomfort, or other complications depending on their location. There are three types of neurofibromatosis: NF1, NF2, and schwannomatosis, each with different symptoms and genetic causes. People with neurofibromatosis may also have skin changes, such as café-au-lait spots, which are light brown patches, and freckling in unusual places. While there is no cure for neurofibromatosis, regular check-ups and monitoring can help manage symptoms and address any issues that arise.