What causes acoustic neuromas?
We don’t know why some people develop acoustic neuromas, but in many cases it arises spontaneously or from a genetic alteration (mutation). We have no evidence that infections, or other trauma to the head or ears cause the benign tumour to start growing. If someone has had one, they are not more likely to get another in the other ear, unless it is part of a syndrome called neurofibromatosis type 2 (NF2), which is a hereditary disease. Only 5% of acoustic neuromas are in people who have NF2.
