Dermatofibroma Risk and Prevention

I just had a spot removed on my leg by a dermatologist. It was a dermatofibroma. I have read that these can be hereditary. My daughter tans in a tanning bed quit often. Is she at higher risk of developing dermatofibromas? I was told not to use a tanning bed again and to be careful out in the sun. What happens if I do get to much sun? Am I at greater risk of developing more dermatofibromas or any type of cancer?