Is nf1 a dangerous disease? do all get tumors on the body and other complications? there is mild freckling on the left armpit no other symptom.

Variable: Dark brown skin patches, raised spots (lisch nodules) on the iris of the eye, fractures of long bones in childhood, freckling armpits, neurofibromas (tumors on the skin or deeper in the body), larger tumors under the skin (plexiform neurofibromas), with pressure on nearby nerves or organs, cognitive impairment (adhd, learning disorder. Most people just get mild forms of disease and nothing else.