Long term snorting damages and destroys nasal tissue..
Yes, prolonged used or cut with something abrasive.
My daughter's best friend when she was Danielle's age got bloody noses all the time. No kidding, this was years ago, but she would get a nosebleed or two every time she spent the night. No impact necessary. Usually some physical activity, but somethimes just sitting there, she would start to bleed.
The mother was very nice to me. Her dad was wierd to her discipline-wise, but nice to me, and he was a systems analyst.
The way they fell out of our lives was strange. It was my daughter's b-day, they were in the middle of moving to another side of town, they called for directions to the party, and we never heard from them again. For two or three years they were inseperable, then just nothing.